(function () {
	'use strict';

	/*
	 * Copyright 2010-2020 Gildas Lormeau
	 * contact : gildas.lormeau <at> gmail.com
	 * 
	 * This file is part of SingleFile.
	 *
	 *   The code in this file is free software: you can redistribute it and/or 
	 *   modify it under the terms of the GNU Affero General Public License 
	 *   (GNU AGPL) as published by the Free Software Foundation, either version 3
	 *   of the License, or (at your option) any later version.
	 * 
	 *   The code in this file is distributed in the hope that it will be useful, 
	 *   but WITHOUT ANY WARRANTY; without even the implied warranty of 
	 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero 
	 *   General Public License for more details.
	 *
	 *   As additional permission under GNU AGPL version 3 section 7, you may 
	 *   distribute UNMODIFIED VERSIONS OF THIS file without the copy of the GNU 
	 *   AGPL normally required by section 4, provided you include this license 
	 *   notice and a URL through which recipients can access the Corresponding 
	 *   Source.
	 */

	/* global document, getComputedStyle, FileReader, Image, OffscreenCanvas, createImageBitmap */

	const singlefile$1 = globalThis.singlefile;

	const CLOSE_ICON = "data:image/png;base64,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";

	const SINGLE_FILE_UI_ELEMENT_CLASS$1 = singlefile$1.helper.SINGLE_FILE_UI_ELEMENT_CLASS;
	const SHARE_PAGE_BAR_TAGNAME = "singlefile-share-page-bar";
	let EMBEDDED_IMAGE_BUTTON_MESSAGE$1, SHARE_PAGE_BUTTON_MESSAGE$1, SHARE_SELECTION_BUTTON_MESSAGE$1, ERROR_TITLE_MESSAGE$1;

	const CSS_PROPERTIES$1 = new Set(Array.from(getComputedStyle(document.documentElement)));

	function setLabels(labels) {
		({ EMBEDDED_IMAGE_BUTTON_MESSAGE: EMBEDDED_IMAGE_BUTTON_MESSAGE$1, SHARE_PAGE_BUTTON_MESSAGE: SHARE_PAGE_BUTTON_MESSAGE$1, SHARE_SELECTION_BUTTON_MESSAGE: SHARE_SELECTION_BUTTON_MESSAGE$1, ERROR_TITLE_MESSAGE: ERROR_TITLE_MESSAGE$1 } = labels);
	}

	function getSharePageBar() {
		let resolvePromise;
		return {
			display: async function (selectedContent) {
				return new Promise(resolve => {
					resolvePromise = resolve;
					displayBar(SHARE_PAGE_BAR_TAGNAME, "", {
						buttonLabel: selectedContent ? SHARE_SELECTION_BUTTON_MESSAGE$1 : SHARE_PAGE_BUTTON_MESSAGE$1,
						buttonOnclick: resolve
					});
				});
			},
			hide: function () {
				const barElement = document.querySelector(SHARE_PAGE_BAR_TAGNAME);
				if (barElement) {
					barElement.remove();
				}
			},
			cancel: function () {
				this.hide();
				if (resolvePromise) {
					resolvePromise(true);
				}
			}
		};
	}

	function displayBar(tagName, message, { link, buttonLabel, buttonOnclick } = {}) {
		try {
			const barElement = document.querySelector(tagName);
			if (!barElement) {
				const barElement = createElement$1(tagName);
				const shadowRoot = barElement.attachShadow({ mode: "open" });
				const styleElement = document.createElement("style");
				styleElement.textContent = `
				.container {
					background-color: #ff6c00;
					color: white;
					display: flex;
					position: fixed;
					top: 0px;
					left: 0px;
					right: 0px;
					height: auto;
					width: auto;
					min-height: 24px;
					min-width: 24px;					
					z-index: 2147483647;
					margin: 0;
					padding: 2px;
					font-family: Arial;
				}
				.singlefile-open-file-bar.container, .singlefile-share-page-bar.container {
					background-color: gainsboro;
					border-block-end: gray 1px solid;
				}
				.text {
					flex: 1;
					padding-top: 4px;
					padding-bottom: 4px;
					padding-left: 8px;					
				}
				button {
					background-color: grey;
					color: white;
					border: 1px solid darkgrey;
					padding: 3px;
					padding-left: 8px;
					padding-right: 8px;
					border-radius: 4px;
					cursor: pointer;
				}
				.close-button {
					opacity: .7;
					padding-left: 8px;
					padding-right: 8px;
					cursor: pointer;
					transition: opacity 250ms;
					height: 16px;
					font-size: .8rem;
					align-self: center;
				}
				.singlefile-open-file-bar button, .singlefile-share-page-bar button{
					background-color: dimgrey;
				}
				.singlefile-open-file-bar .close-button, .singlefile-share-page-bar .close-button{
					filter: invert(1);
				}
				a {
					color: #303036;
				}
				.close-button:hover {
					opacity: 1;
				}
			`;
				shadowRoot.appendChild(styleElement);
				const containerElement = document.createElement("div");
				containerElement.classList.add(tagName);
				containerElement.classList.add("container");
				const textElement = document.createElement("span");
				textElement.classList.add("text");
				const content = message.split("__DOC_LINK__");
				textElement.textContent = content[0];
				if (link && content.length == 2) {
					const linkElement = document.createElement("a");
					linkElement.textContent = link;
					linkElement.href = link;
					linkElement.target = "_blank";
					textElement.appendChild(linkElement);
					textElement.appendChild(document.createTextNode(content[1]));
				}
				if (buttonLabel && buttonOnclick) {
					const buttonElement = document.createElement("button");
					buttonElement.textContent = buttonLabel;
					buttonElement.onclick = () => buttonOnclick();
					textElement.appendChild(buttonElement);
				}
				containerElement.appendChild(textElement);
				const closeElement = document.createElement("img");
				closeElement.classList.add("close-button");
				containerElement.appendChild(closeElement);
				shadowRoot.appendChild(containerElement);
				closeElement.src = CLOSE_ICON;
				closeElement.onclick = event => {
					if (event.button === 0) {
						if (buttonOnclick) {
							buttonOnclick(true);
						}
						barElement.remove();
					}
				};
				document.documentElement.appendChild(barElement);
			}
			// eslint-disable-next-line no-unused-vars
		} catch (error) {
			// iignored
		}
	}

	function createElement$1(tagName, parentElement) {
		const element = document.createElement(tagName);
		element.className = SINGLE_FILE_UI_ELEMENT_CLASS$1;
		CSS_PROPERTIES$1.forEach(property => element.style.setProperty(property, "initial", "important"));
		return element;
	}

	/* global TextEncoder, TextDecoder */

	const TYPE_REFERENCE = 0;
	const SPECIAL_TYPES = [TYPE_REFERENCE];
	const EMPTY_SLOT_VALUE = Symbol();

	const textEncoder = new TextEncoder();
	const textDecoder = new TextDecoder();
	const types = new Array(256);
	let typeIndex = 0;

	registerType(serializeCircularReference, parseCircularReference, testCircularReference, TYPE_REFERENCE);
	registerType(null, parseObject, testObject);
	registerType(serializeArray, parseArray, testArray);
	registerType(serializeString, parseString, testString);
	registerType(serializeTypedArray, parseFloat64Array, testFloat64Array);
	registerType(serializeTypedArray, parseFloat32Array, testFloat32Array);
	registerType(serializeTypedArray, parseUint32Array, testUint32Array);
	registerType(serializeTypedArray, parseInt32Array, testInt32Array);
	registerType(serializeTypedArray, parseUint16Array, testUint16Array);
	registerType(serializeTypedArray, parseInt16Array, testInt16Array);
	registerType(serializeTypedArray, parseUint8ClampedArray, testUint8ClampedArray);
	registerType(serializeTypedArray, parseUint8Array, testUint8Array);
	registerType(serializeTypedArray, parseInt8Array, testInt8Array);
	registerType(serializeArrayBuffer, parseArrayBuffer, testArrayBuffer);
	registerType(serializeNumber, parseNumber, testNumber);
	registerType(serializeUint32, parseUint32, testUint32);
	registerType(serializeInt32, parseInt32, testInt32);
	registerType(serializeUint16, parseUint16, testUint16);
	registerType(serializeInt16, parseInt16, testInt16);
	registerType(serializeUint8, parseUint8, testUint8);
	registerType(serializeInt8, parseInt8, testInt8);
	registerType(null, parseUndefined, testUndefined);
	registerType(null, parseNull, testNull);
	registerType(null, parseNaN, testNaN);
	registerType(serializeBoolean, parseBoolean, testBoolean);
	registerType(serializeSymbol, parseSymbol, testSymbol);
	registerType(null, parseEmptySlot, testEmptySlot);
	registerType(serializeMap, parseMap, testMap);
	registerType(serializeSet, parseSet, testSet);
	registerType(serializeDate, parseDate, testDate);
	registerType(serializeError, parseError, testError);
	registerType(serializeRegExp, parseRegExp, testRegExp);
	registerType(serializeStringObject, parseStringObject, testStringObject);
	registerType(serializeNumberObject, parseNumberObject, testNumberObject);
	registerType(serializeBooleanObject, parseBooleanObject, testBooleanObject);

	function registerType(serialize, parse, test, type) {
		if (type === undefined) {
			typeIndex++;
			if (types.length - typeIndex >= SPECIAL_TYPES.length) {
				types[types.length - typeIndex] = { serialize, parse, test };
			} else {
				throw new Error("Reached maximum number of custom types");
			}
		} else {
			types[type] = { serialize, parse, test };
		}
	}

	async function serializeValue(data, value) {
		const type = types.findIndex(({ test } = {}) => test && test(value, data));
		data.addObject(value);
		await data.append(new Uint8Array([type]));
		const serialize = types[type].serialize;
		if (serialize) {
			await serialize(data, value);
		}
		if (type != TYPE_REFERENCE && testObject(value)) {
			await serializeSymbols(data, value);
			await serializeOwnProperties(data, value);
		}
	}

	async function serializeSymbols(data, value) {
		const ownPropertySymbols = Object.getOwnPropertySymbols(value);
		const symbols = ownPropertySymbols.map(propertySymbol => [propertySymbol, value[propertySymbol]]);
		await serializeArray(data, symbols);
	}

	async function serializeOwnProperties(data, value) {
		if (!ArrayBuffer.isView(value)) {
			let entries = Object.entries(value);
			if (testArray(value)) {
				entries = entries.filter(([key]) => !testInteger(Number(key)));
			}
			await serializeValue(data, entries.length);
			for (const [key, value] of entries) {
				await serializeString(data, key);
				await serializeValue(data, value);
			}
		} else {
			await serializeValue(data, 0);
		}
	}

	async function serializeCircularReference(data, value) {
		const index = data.objects.indexOf(value);
		await serializeValue(data, index);
	}

	async function serializeArray(data, array) {
		await serializeValue(data, array.length);
		const notEmptyIndexes = Object.keys(array).filter(key => testInteger(Number(key))).map(key => Number(key));
		let indexNotEmptyIndexes = 0, currentNotEmptyIndex = notEmptyIndexes[indexNotEmptyIndexes];
		for (const [indexArray, value] of array.entries()) {
			if (currentNotEmptyIndex == indexArray) {
				currentNotEmptyIndex = notEmptyIndexes[++indexNotEmptyIndexes];
				await serializeValue(data, value);
			} else {
				await serializeValue(data, EMPTY_SLOT_VALUE);
			}
		}
	}

	async function serializeString(data, string) {
		const encodedString = textEncoder.encode(string);
		await serializeValue(data, encodedString.length);
		await data.append(encodedString);
	}

	async function serializeTypedArray(data, array) {
		await serializeValue(data, array.length);
		await data.append(array.constructor.name == "Uint8Array" ? array : new Uint8Array(array.buffer));
	}

	async function serializeArrayBuffer(data, arrayBuffer) {
		await serializeValue(data, arrayBuffer.byteLength);
		await data.append(new Uint8Array(arrayBuffer));
	}

	async function serializeNumber(data, number) {
		const serializedNumber = new Uint8Array(new Float64Array([number]).buffer);
		await data.append(serializedNumber);
	}

	async function serializeUint32(data, number) {
		const serializedNumber = new Uint8Array(new Uint32Array([number]).buffer);
		await data.append(serializedNumber);
	}

	async function serializeInt32(data, number) {
		const serializedNumber = new Uint8Array(new Int32Array([number]).buffer);
		await data.append(serializedNumber);
	}

	async function serializeUint16(data, number) {
		const serializedNumber = new Uint8Array(new Uint16Array([number]).buffer);
		await data.append(serializedNumber);
	}

	async function serializeInt16(data, number) {
		const serializedNumber = new Uint8Array(new Int16Array([number]).buffer);
		await data.append(serializedNumber);
	}

	async function serializeUint8(data, number) {
		const serializedNumber = new Uint8Array([number]);
		await data.append(serializedNumber);
	}

	async function serializeInt8(data, number) {
		const serializedNumber = new Uint8Array(new Int8Array([number]).buffer);
		await data.append(serializedNumber);
	}

	async function serializeBoolean(data, boolean) {
		const serializedBoolean = new Uint8Array([Number(boolean)]);
		await data.append(serializedBoolean);
	}

	async function serializeMap(data, map) {
		const entries = map.entries();
		await serializeValue(data, map.size);
		for (const [key, value] of entries) {
			await serializeValue(data, key);
			await serializeValue(data, value);
		}
	}

	async function serializeSet(data, set) {
		await serializeValue(data, set.size);
		for (const value of set) {
			await serializeValue(data, value);
		}
	}

	async function serializeDate(data, date) {
		await serializeNumber(data, date.getTime());
	}

	async function serializeError(data, error) {
		await serializeString(data, error.message);
		await serializeString(data, error.stack);
	}

	async function serializeRegExp(data, regExp) {
		await serializeString(data, regExp.source);
		await serializeString(data, regExp.flags);
	}

	async function serializeStringObject(data, string) {
		await serializeString(data, string.valueOf());
	}

	async function serializeNumberObject(data, number) {
		await serializeNumber(data, number.valueOf());
	}

	async function serializeBooleanObject(data, boolean) {
		await serializeBoolean(data, boolean.valueOf());
	}

	async function serializeSymbol(data, symbol) {
		await serializeString(data, symbol.description);
	}

	class Reference {
		constructor(index, data) {
			this.index = index;
			this.data = data;
		}

		getObject() {
			return this.data.objects[this.index];
		}
	}

	async function parseValue(data) {
		const array = await data.consume(1);
		const parserType = array[0];
		const parse = types[parserType].parse;
		const valueId = data.getObjectId();
		const result = await parse(data);
		if (parserType != TYPE_REFERENCE && testObject(result)) {
			await parseSymbols(data, result);
			await parseOwnProperties(data, result);
		}
		data.resolveObject(valueId, result);
		return result;
	}

	async function parseSymbols(data, value) {
		const symbols = await parseArray(data);
		data.setObject([symbols], symbols => symbols.forEach(([symbol, propertyValue]) => value[symbol] = propertyValue));
	}

	async function parseOwnProperties(data, object) {
		const size = await parseValue(data);
		if (size) {
			await parseNextProperty();
		}

		async function parseNextProperty(indexKey = 0) {
			const key = await parseString(data);
			const value = await parseValue(data);
			data.setObject([value], value => object[key] = value);
			if (indexKey < size - 1) {
				await parseNextProperty(indexKey + 1);
			}
		}
	}

	async function parseCircularReference(data) {
		const index = await parseValue(data);
		const result = new Reference(index, data);
		return result;
	}

	function parseObject() {
		return {};
	}

	async function parseArray(data) {
		const length = await parseValue(data);
		const array = new Array(length);
		if (length) {
			await parseNextSlot();
		}
		return array;

		async function parseNextSlot(indexArray = 0) {
			const value = await parseValue(data);
			if (!testEmptySlot(value)) {
				data.setObject([value], value => array[indexArray] = value);
			}
			if (indexArray < length - 1) {
				await parseNextSlot(indexArray + 1);
			}
		}
	}

	function parseEmptySlot() {
		return EMPTY_SLOT_VALUE;
	}

	async function parseString(data) {
		const size = await parseValue(data);
		const array = await data.consume(size);
		return textDecoder.decode(array);
	}

	async function parseFloat64Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length * 8);
		return new Float64Array(array.buffer);
	}

	async function parseFloat32Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length * 4);
		return new Float32Array(array.buffer);
	}

	async function parseUint32Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length * 4);
		return new Uint32Array(array.buffer);
	}

	async function parseInt32Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length * 4);
		return new Int32Array(array.buffer);
	}

	async function parseUint16Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length * 2);
		return new Uint16Array(array.buffer);
	}

	async function parseInt16Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length * 2);
		return new Int16Array(array.buffer);
	}

	async function parseUint8ClampedArray(data) {
		const length = await parseValue(data);
		const array = await data.consume(length);
		return new Uint8ClampedArray(array.buffer);
	}

	async function parseUint8Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length);
		return array;
	}

	async function parseInt8Array(data) {
		const length = await parseValue(data);
		const array = await data.consume(length);
		return new Int8Array(array.buffer);
	}

	async function parseArrayBuffer(data) {
		const length = await parseValue(data);
		const array = await data.consume(length);
		return array.buffer;
	}

	async function parseNumber(data) {
		const array = await data.consume(8);
		return new Float64Array(array.buffer)[0];
	}

	async function parseUint32(data) {
		const array = await data.consume(4);
		return new Uint32Array(array.buffer)[0];
	}

	async function parseInt32(data) {
		const array = await data.consume(4);
		return new Int32Array(array.buffer)[0];
	}

	async function parseUint16(data) {
		const array = await data.consume(2);
		return new Uint16Array(array.buffer)[0];
	}

	async function parseInt16(data) {
		const array = await data.consume(2);
		return new Int16Array(array.buffer)[0];
	}

	async function parseUint8(data) {
		const array = await data.consume(1);
		return new Uint8Array(array.buffer)[0];
	}

	async function parseInt8(data) {
		const array = await data.consume(1);
		return new Int8Array(array.buffer)[0];
	}

	function parseUndefined() {
		return undefined;
	}

	function parseNull() {
		return null;
	}

	function parseNaN() {
		return NaN;
	}

	async function parseBoolean(data) {
		const array = await data.consume(1);
		return Boolean(array[0]);
	}

	async function parseMap(data) {
		const size = await parseValue(data);
		const map = new Map();
		if (size) {
			await parseNextEntry();
		}
		return map;

		async function parseNextEntry(indexKey = 0) {
			const key = await parseValue(data);
			const value = await parseValue(data);
			data.setObject([key, value], (key, value) => map.set(key, value));
			if (indexKey < size - 1) {
				await parseNextEntry(indexKey + 1);
			}
		}
	}

	async function parseSet(data) {
		const size = await parseValue(data);
		const set = new Set();
		if (size) {
			await parseNextEntry();
		}
		return set;

		async function parseNextEntry(indexKey = 0) {
			const value = await parseValue(data);
			data.setObject([value], value => set.add(value));
			if (indexKey < size - 1) {
				await parseNextEntry(indexKey + 1);
			}
		}
	}

	async function parseDate(data) {
		const milliseconds = await parseNumber(data);
		return new Date(milliseconds);
	}

	async function parseError(data) {
		const message = await parseString(data);
		const stack = await parseString(data);
		const error = new Error(message);
		error.stack = stack;
		return error;
	}

	async function parseRegExp(data) {
		const source = await parseString(data);
		const flags = await parseString(data);
		return new RegExp(source, flags);
	}

	async function parseStringObject(data) {
		return new String(await parseString(data));
	}

	async function parseNumberObject(data) {
		return new Number(await parseNumber(data));
	}

	async function parseBooleanObject(data) {
		return new Boolean(await parseBoolean(data));
	}

	async function parseSymbol(data) {
		const description = await parseString(data);
		return Symbol(description);
	}

	function testCircularReference(value, data) {
		return testObject(value) && data.objects.includes(value);
	}

	function testObject(value) {
		return value === Object(value);
	}

	function testArray(value) {
		return typeof value.length == "number";
	}

	function testEmptySlot(value) {
		return value === EMPTY_SLOT_VALUE;
	}

	function testString(value) {
		return typeof value == "string";
	}

	function testFloat64Array(value) {
		return value.constructor.name == "Float64Array";
	}

	function testUint32Array(value) {
		return value.constructor.name == "Uint32Array";
	}

	function testInt32Array(value) {
		return value.constructor.name == "Int32Array";
	}

	function testUint16Array(value) {
		return value.constructor.name == "Uint16Array";
	}

	function testFloat32Array(value) {
		return value.constructor.name == "Float32Array";
	}

	function testInt16Array(value) {
		return value.constructor.name == "Int16Array";
	}

	function testUint8ClampedArray(value) {
		return value.constructor.name == "Uint8ClampedArray";
	}

	function testUint8Array(value) {
		return value.constructor.name == "Uint8Array";
	}

	function testInt8Array(value) {
		return value.constructor.name == "Int8Array";
	}

	function testArrayBuffer(value) {
		return value.constructor.name == "ArrayBuffer";
	}

	function testNumber(value) {
		return typeof value == "number";
	}

	function testUint32(value) {
		return testInteger(value) && value >= 0 && value <= 4294967295;
	}

	function testInt32(value) {
		return testInteger(value) && value >= -2147483648 && value <= 2147483647;
	}

	function testUint16(value) {
		return testInteger(value) && value >= 0 && value <= 65535;
	}

	function testInt16(value) {
		return testInteger(value) && value >= -32768 && value <= 32767;
	}

	function testUint8(value) {
		return testInteger(value) && value >= 0 && value <= 255;
	}

	function testInt8(value) {
		return testInteger(value) && value >= -128 && value <= 127;
	}

	function testInteger(value) {
		return testNumber(value) && Number.isInteger(value);
	}

	function testUndefined(value) {
		return value === undefined;
	}

	function testNull(value) {
		return value === null;
	}

	function testNaN(value) {
		return Number.isNaN(value);
	}

	function testBoolean(value) {
		return typeof value == "boolean";
	}

	function testMap(value) {
		return value instanceof Map;
	}

	function testSet(value) {
		return value instanceof Set;
	}

	function testDate(value) {
		return value instanceof Date;
	}

	function testError(value) {
		return value instanceof Error;
	}

	function testRegExp(value) {
		return value instanceof RegExp;
	}

	function testStringObject(value) {
		return value instanceof String;
	}

	function testNumberObject(value) {
		return value instanceof Number;
	}

	function testBooleanObject(value) {
		return value instanceof Boolean;
	}

	function testSymbol(value) {
		return typeof value == "symbol";
	}

	/*
	 * Copyright 2010-2020 Gildas Lormeau
	 * contact : gildas.lormeau <at> gmail.com
	 * 
	 * This file is part of SingleFile.
	 *
	 *   The code in this file is free software: you can redistribute it and/or 
	 *   modify it under the terms of the GNU Affero General Public License 
	 *   (GNU AGPL) as published by the Free Software Foundation, either version 3
	 *   of the License, or (at your option) any later version.
	 * 
	 *   The code in this file is distributed in the hope that it will be useful, 
	 *   but WITHOUT ANY WARRANTY; without even the implied warranty of 
	 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero 
	 *   General Public License for more details.
	 *
	 *   As additional permission under GNU AGPL version 3 section 7, you may 
	 *   distribute UNMODIFIED VERSIONS OF THIS file without the copy of the GNU 
	 *   AGPL normally required by section 4, provided you include this license 
	 *   notice and a URL through which recipients can access the Corresponding 
	 *   Source.
	 */

	/* global browser, document, prompt, getComputedStyle, addEventListener, removeEventListener, requestAnimationFrame, setTimeout, getSelection, Node, URL */

	const singlefile = globalThis.singlefile;

	singlefile.helper.SELECTED_CONTENT_ATTRIBUTE_NAME;
	const LOGS_WINDOW_TAGNAME = "singlefile-logs-window";
	const LOGS_CLASSNAME = "singlefile-logs";
	const LOGS_LINE_CLASSNAME = "singlefile-logs-line";
	const LOGS_LINE_TEXT_ELEMENT_CLASSNAME = "singlefile-logs-line-text";
	const LOGS_LINE_STATUS_ELEMENT_CLASSNAME = "singlefile-logs-line-icon";
	const SINGLE_FILE_UI_ELEMENT_CLASS = singlefile.helper.SINGLE_FILE_UI_ELEMENT_CLASS;
	const CSS_PROPERTIES = new Set(Array.from(getComputedStyle(document.documentElement)));
	let LOG_PANEL_WIDTH, LOG_PANEL_DEFERRED_IMAGES_MESSAGE, LOG_PANEL_FRAME_CONTENTS_MESSAGE, LOG_PANEL_EMBEDDED_IMAGE_MESSAGE, LOG_PANEL_STEP_MESSAGE;
	try {
		LOG_PANEL_WIDTH = browser.i18n.getMessage("logPanelWidth");
		LOG_PANEL_DEFERRED_IMAGES_MESSAGE = browser.i18n.getMessage("logPanelDeferredImages");
		LOG_PANEL_FRAME_CONTENTS_MESSAGE = browser.i18n.getMessage("logPanelFrameContents");
		LOG_PANEL_EMBEDDED_IMAGE_MESSAGE = browser.i18n.getMessage("logPanelEmbeddedImage");
		LOG_PANEL_STEP_MESSAGE = browser.i18n.getMessage("logPanelStep");
		// eslint-disable-next-line no-unused-vars
	} catch (error) {
		// ignored
	}

	let logsWindowElement;
	createLogsWindowElement();

	function promptMessage(message, defaultValue) {
		return prompt(message, defaultValue);
	}

	function createLogsWindowElement() {
		try {
			logsWindowElement = document.querySelector(LOGS_WINDOW_TAGNAME);
			if (!logsWindowElement) {
				logsWindowElement = createElement(LOGS_WINDOW_TAGNAME);
				const shadowRoot = logsWindowElement.attachShadow({ mode: "open" });
				const styleElement = document.createElement("style");
				styleElement.textContent = `
				@keyframes single-file-pulse { 
					0% { 
						opacity: .25;
					} 
					100% { 
						opacity: 1;
					} 
				}
				.${LOGS_CLASSNAME} {
					position: fixed;
					bottom: 24px;
					left: 8px;
					z-index: 2147483647;
					opacity: 0.9;
					padding: 4px;
					background-color: white;
					min-width: ${LOG_PANEL_WIDTH}px;
					min-height: 16px;
					transition: height 100ms;
				}
				.${LOGS_LINE_CLASSNAME} {
					display: flex;
					justify-content: space-between;
					padding: 2px;
					font-family: arial, sans-serif;
					color: black;
					background-color: white;
				}
				.${LOGS_LINE_TEXT_ELEMENT_CLASSNAME} {
					font-size: 13px;
					opacity: 1;
					transition: opacity 200ms;
				}
				.${LOGS_LINE_STATUS_ELEMENT_CLASSNAME} {
					font-size: 11px;
					min-width: 15px;
					text-align: center;
					position: relative;
					top: 1px;
				}
			`;
				shadowRoot.appendChild(styleElement);
				const logsContentElement = document.createElement("div");
				logsContentElement.classList.add(LOGS_CLASSNAME);
				shadowRoot.appendChild(logsContentElement);
			}
			// eslint-disable-next-line no-unused-vars
		} catch (error) {
			// ignored
		}
	}

	function createElement(tagName, parentElement) {
		const element = document.createElement(tagName);
		element.className = SINGLE_FILE_UI_ELEMENT_CLASS;
		CSS_PROPERTIES.forEach(property => element.style.setProperty(property, "initial", "important"));
		return element;
	}

	/*
	 * Copyright 2010-2020 Gildas Lormeau
	 * contact : gildas.lormeau <at> gmail.com
	 * 
	 * This file is part of SingleFile.
	 *
	 *   The code in this file is free software: you can redistribute it and/or 
	 *   modify it under the terms of the GNU Affero General Public License 
	 *   (GNU AGPL) as published by the Free Software Foundation, either version 3
	 *   of the License, or (at your option) any later version.
	 * 
	 *   The code in this file is distributed in the hope that it will be useful, 
	 *   but WITHOUT ANY WARRANTY; without even the implied warranty of 
	 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero 
	 *   General Public License for more details.
	 *
	 *   As additional permission under GNU AGPL version 3 section 7, you may 
	 *   distribute UNMODIFIED VERSIONS OF THIS file without the copy of the GNU 
	 *   AGPL normally required by section 4, provided you include this license 
	 *   notice and a URL through which recipients can access the Corresponding 
	 *   Source.
	 */


	let EMBEDDED_IMAGE_BUTTON_MESSAGE, SHARE_PAGE_BUTTON_MESSAGE, SHARE_SELECTION_BUTTON_MESSAGE, ERROR_TITLE_MESSAGE;

	try {
		EMBEDDED_IMAGE_BUTTON_MESSAGE = browser.i18n.getMessage("topPanelEmbeddedImageButton");
		SHARE_PAGE_BUTTON_MESSAGE = browser.i18n.getMessage("topPanelSharePageButton");
		SHARE_SELECTION_BUTTON_MESSAGE = browser.i18n.getMessage("topPanelShareSelectionButton");
		ERROR_TITLE_MESSAGE = browser.i18n.getMessage("topPanelError");
		// eslint-disable-next-line no-unused-vars
	} catch (error) {
		// ignored
	}

	let sharePageBar;
	setLabels({
		EMBEDDED_IMAGE_BUTTON_MESSAGE,
		SHARE_PAGE_BUTTON_MESSAGE,
		SHARE_SELECTION_BUTTON_MESSAGE,
		ERROR_TITLE_MESSAGE
	});

	async function downloadPageForeground(pageData, options) {
		if (Array.isArray(pageData.content)) {
			pageData.content = new Uint8Array(pageData.content);
		}
		if (options.sharePage && navigator.share) {
			await sharePage(pageData, options);
		} else {
			let filename = pageData.filename;
			if (options.confirmFilename) {
				filename = promptMessage("Save as", pageData.filename);
				if (filename) {
					pageData.filename = filename;
				} else {
					browser.runtime.sendMessage({ method: "downloads.cancel" });
					browser.runtime.sendMessage({ method: "ui.processCancelled" });
				}
			}
			if (filename) {
				const link = document.createElement("a");
				link.download = pageData.filename;
				link.href = URL.createObjectURL(new Blob([pageData.content], { type: pageData.mimeType }));
				link.dispatchEvent(new MouseEvent("click"));
				return new Promise(resolve => setTimeout(() => { URL.revokeObjectURL(link.href); resolve(); }, 1000));
			}
		}
	}

	async function sharePage(pageData, options) {
		sharePageBar = getSharePageBar();
		const cancelled = await sharePageBar.display(options.selected);
		if (!cancelled) {
			const data = { files: [new File([pageData.content], pageData.filename, { type: pageData.mimeType })] };
			try {
				await navigator.share(data);
				sharePageBar.hide();
			} catch (error) {
				sharePageBar.hide();
				if (error.name === "AbortError") {
					await sharePage(pageData, options);
				} else {
					throw error;
				}
			}
		}
	}

	/* global URL, TextDecoder, TextEncoder, btoa, atob */

	const EVENT_HANDLER_ATTRIBUTES = [
	    "onafterprint",
	    "onbeforeprint",
	    "onbeforeunload",
	    "onhashchange",
	    "onlanguagechange",
	    "onmessage",
	    "onmessageerror",
	    "onoffline",
	    "ononline",
	    "onpagehide",
	    "onpageshow",
	    "onpopstate",
	    "onrejectionhandled",
	    "onstorage",
	    "onunhandledrejection",
	    "onunload",
	    "ongamepadconnected",
	    "ongamepaddisconnected",
	    "onabort",
	    "onblur",
	    "onfocus",
	    "oncancel",
	    "onauxclick",
	    "onbeforeinput",
	    "onbeforetoggle",
	    "oncanplay",
	    "oncanplaythrough",
	    "onchange",
	    "onclick",
	    "onclose",
	    "oncontentvisibilityautostatechange",
	    "oncontextlost",
	    "oncontextmenu",
	    "oncontextrestored",
	    "oncopy",
	    "oncuechange",
	    "oncut",
	    "ondblclick",
	    "ondrag",
	    "ondragend",
	    "ondragenter",
	    "ondragleave",
	    "ondragover",
	    "ondragstart",
	    "ondrop",
	    "ondurationchange",
	    "onemptied",
	    "onended",
	    "onformdata",
	    "oninput",
	    "oninvalid",
	    "onkeydown",
	    "onkeypress",
	    "onkeyup",
	    "onload",
	    "onloadeddata",
	    "onloadedmetadata",
	    "onloadstart",
	    "onmousedown",
	    "onmouseenter",
	    "onmouseleave",
	    "onmousemove",
	    "onmouseout",
	    "onmouseover",
	    "onmouseup",
	    "onwheel",
	    "onpaste",
	    "onpause",
	    "onplay",
	    "onplaying",
	    "onprogress",
	    "onratechange",
	    "onreset",
	    "onresize",
	    "onscroll",
	    "onscrollend",
	    "onsecuritypolicyviolation",
	    "onseeked",
	    "onseeking",
	    "onselect",
	    "onslotchange",
	    "onstalled",
	    "onsubmit",
	    "onsuspend",
	    "ontimeupdate",
	    "onvolumechange",
	    "onwaiting",
	    "onselectstart",
	    "onselectionchange",
	    "ontoggle",
	    "onpointercancel",
	    "onpointerdown",
	    "onpointerup",
	    "onpointermove",
	    "onpointerout",
	    "onpointerover",
	    "onpointerenter",
	    "onpointerleave",
	    "ongotpointercapture",
	    "onlostpointercapture",
	    "onanimationcancel",
	    "onanimationend",
	    "onanimationiteration",
	    "onanimationstart",
	    "ontransitioncancel",
	    "ontransitionend",
	    "ontransitionrun",
	    "ontransitionstart",
	    "onerror",
	    "onfullscreenchange",
	    "onfullscreenerror"
	];

	function decodeQuotedPrintable(array) {
	    const result = [];
	    for (let i = 0; i < array.length; i++) {
	        if (array[i] === 0x3D) {
	            if (isHex(array[i + 1]) && isHex(array[i + 2])) {
	                const hex = parseInt(String.fromCharCode(array[i + 1], array[i + 2]), 16);
	                result.push(hex);
	                i += 2;
	            } else {
	                result.push(array[i]);
	            }
	        } else {
	            result.push(array[i]);
	        }
	    }
	    return new Uint8Array(result);

	    function isHex(value) {
	        return value >= 0x30 && value <= 0x39 || value >= 0x41 && value <= 0x46;
	    }
	}

	function decodeBinary(array) {
	    let data = "";
	    for (let indexData = 0; indexData < array.length; indexData++) {
	        data += String.fromCharCode(array[indexData]);
	    }
	    return btoa(data);
	}

	function decodeBase64(value, charset) {
	    const decodedData = new Uint8Array(atob(value).split("").map(char => char.charCodeAt(0)));
	    return new TextDecoder(charset).decode(decodedData);
	}

	function decodeMimeHeader(encodedSubject) {
	    if (encodedSubject && encodedSubject.startsWith("=?") && encodedSubject.endsWith("?=")) {
	        const encodedSubjectParts = [];
	        let index = 0;
	        while (index < encodedSubject.length) {
	            const start = encodedSubject.indexOf("=?", index);
	            if (start === -1) {
	                break;
	            }
	            const endCharset = encodedSubject.indexOf("?", start + 2);
	            if (endCharset === -1) {
	                break;
	            }
	            const charset = encodedSubject.substring(start + 2, endCharset);
	            const endEncoding = encodedSubject.indexOf("?", endCharset + 1);
	            if (endEncoding === -1) {
	                break;
	            }
	            const encoding = encodedSubject.substring(endCharset + 1, endEncoding);
	            const endValue = encodedSubject.indexOf("?=", endEncoding + 1);
	            if (endValue === -1) {
	                break;
	            }
	            const value = encodedSubject.substring(endEncoding + 1, endValue);
	            index = endValue + 2;
	            if (encoding === "Q") {
	                encodedSubjectParts.push(new TextDecoder(charset).decode(decodeQuotedPrintable(new TextEncoder().encode(value))));
	            } else if (encoding === "B") {
	                encodedSubjectParts.push(decodeBase64(value, charset));
	            }
	        }
	        encodedSubject = encodedSubjectParts.join("");
	    }
	    return encodedSubject || "";
	}

	function parseDOM(asset, contentType = "text/html", DOMParser = globalThis.DOMParser) {
	    let document;
	    try {
	        document = new DOMParser().parseFromString(asset, contentType);
	        // eslint-disable-next-line no-unused-vars
	    } catch (_) {
	        document = new DOMParser().parseFromString(asset, "text/html");
	    }
	    return {
	        document,
	        serialize() {
	            let result = "";
	            if (this.document.doctype) {
	                result += serializeDocType(this.document.doctype) + "\n";
	            }
	            result += this.document.documentElement.outerHTML;
	            return result;
	        }
	    };
	}

	function serializeDocType(doctype) {
	    return `<!DOCTYPE ${doctype.name}${(doctype.publicId ? ` PUBLIC "${doctype.publicId}"` : "")}${(doctype.systemId ? ` "${doctype.systemId}"` : "")}>`;
	}

	function decodeString(array, charset) {
	    return new TextDecoder(charset).decode(array);
	}

	function encodeString(string, charset) {
	    return new TextEncoder(charset).encode(string);
	}

	function getCharset(contentType) {
	    const charsetMatch = contentType.match(/charset=([^;]+)/);
	    if (charsetMatch) {
	        return removeQuotes(charsetMatch[1]).toLowerCase();
	    }
	}

	function removeQuotes(value) {
	    return value.replace(/^"(.*)"$/, "$1").replace(/^'(.*)'$/, "$1").trim();
	}

	function replaceCharset(contentType, charset) {
	    return contentType.replace(/charset=([^;]+)/, `charset=${charset}`);
	}

	function isDocument(contentType) {
	    return contentType.startsWith("text/html") || contentType.startsWith("application/xhtml+xml");
	}

	function isStylesheet(contentType) {
	    return contentType.startsWith("text/css");
	}

	function isText(contentType) {
	    return contentType.startsWith("text/");
	}

	function isMultipartAlternative(contentType) {
	    return contentType.startsWith("multipart/alternative");
	}

	function getBoundary(contentType) {
	    const contentTypeParams = contentType.split(";");
	    contentTypeParams.shift();
	    const boundaryParam = contentTypeParams.find(param => param.startsWith("boundary="));
	    if (boundaryParam) {
	        return removeQuotes(boundaryParam.substring(9));
	    }
	}

	function indexOf(array, string) {
	    const stringBytes = new TextEncoder().encode(string);
	    for (let i = 0; i < array.length; i++) {
	        if (array[i] === stringBytes[0]) {
	            let match = true;
	            for (let j = 1; j < stringBytes.length; j++) {
	                if (array[i + j] !== stringBytes[j]) {
	                    match = false;
	                    break;
	                }
	            }
	            if (match) {
	                // return index
	                return i;
	            }
	        }
	    }
	    return -1;
	}

	function isLineFeed(array) {
	    return array.length == 2 ? array[0] == 0x0D && array[1] == 0x0A : array.length == 1 ? array[0] == 0x0A : false;
	}

	function endsWithCRLF(array) {
	    return array.length >= 2 ? array[array.length - 2] == 0x0D && array[array.length - 1] == 0x0A : array.length >= 1 ? array[array.length - 1] == 0x0D : false;
	}

	function endsWithLF(array) {
	    return array.length >= 1 ? array[array.length - 1] == 0x0A : false;
	}

	function startsWithBoundary(array) {
	    return array.length >= 2 ? array[0] == 0x2D && array[1] == 0x2D : false;
	}

	function getResourceURI({ contentType, transferEncoding, data }) {
	    return `data:${contentType};${"base64"},${transferEncoding === "base64" ? data : btoa(unescape(encodeURIComponent(data)))}`;
	}

	function resolvePath(path, base) {
	    if (base && !path.startsWith("data:")) {
	        try {
	            return new URL(path, base).href;
	            // eslint-disable-next-line no-unused-vars
	        } catch (_) {
	            if (path.startsWith("//")) {
	                const protocol = base.match(/^[^:]+/);
	                if (protocol) {
	                    return `${protocol[0]}:${path}`;
	                } else {
	                    return path;
	                }
	            } else {
	                return path;
	            }
	        }
	    } else {
	        return path;
	    }
	}

	// dist/csstree.esm.js from https://github.com/csstree/csstree/tree/b3fe3e026ce131aa559427162451a60792589730

	/*
	 * Copyright (C) 2016-2024 by Roman Dvornov
	 * 
	 * Permission is hereby granted, free of charge, to any person obtaining a copy
	 * of this software and associated documentation files (the "Software"), to deal
	 * in the Software without restriction, including without limitation the rights
	 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	 * copies of the Software, and to permit persons to whom the Software is
	 * furnished to do so, subject to the following conditions:
	 * 
	 * The above copyright notice and this permission notice shall be included in
	 * all copies or substantial portions of the Software.
	 * 
	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	 * THE SOFTWARE.
	 */

	var Ra=Object.create;var or=Object.defineProperty;var Fa=Object.getOwnPropertyDescriptor;var Ma=Object.getOwnPropertyNames;var Ba=Object.getPrototypeOf,_a=Object.prototype.hasOwnProperty;var Me=(e,t)=>()=>(t||e((t={exports:{}}).exports,t),t.exports),f=(e,t)=>{for(var r in t)or(e,r,{get:t[r],enumerable:true});},Wa=(e,t,r,n)=>{if(t&&typeof t=="object"||typeof t=="function")for(let i of Ma(t))!_a.call(e,i)&&i!==r&&or(e,i,{get:()=>t[i],enumerable:!(n=Fa(t,i))||n.enumerable});return e};var qa=(e,t,r)=>(r=e!=null?Ra(Ba(e)):{},Wa(or(r,"default",{value:e,enumerable:true}),e));var So=Me(fr=>{var vo="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");fr.encode=function(e){if(0<=e&&e<vo.length)return vo[e];throw new TypeError("Must be between 0 and 63: "+e)};fr.decode=function(e){var t=65,r=90,n=97,i=122,o=48,s=57,u=43,c=47,a=26,l=52;return t<=e&&e<=r?e-t:n<=e&&e<=i?e-n+a:o<=e&&e<=s?e-o+l:e==u?62:e==c?63:-1};});var Eo=Me(br=>{var 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Vs=47,Cp=60,Qs=61,Tp=62,Ap="FeatureRange",Lp={kind:String,left:["Identifier","Number","Dimension","Ratio","Function"],leftComparison:String,middle:["Identifier","Number","Dimension","Ratio","Function"],rightComparison:[String,null],right:["Identifier","Number","Dimension","Ratio","Function",null]};function Mn(){switch(this.skipSC(),this.tokenType){case 10:return this.isDelim(Vs,this.lookupOffsetNonSC(1))?this.Ratio():this.Number();case 12:return this.Dimension();case 1:return this.Identifier();case 2:return this.parseWithFallback(()=>{let e=this.Function(this.readSequence,this.scope.Value);return this.skipSC(),this.isDelim(Vs)&&this.error(),e},()=>this.Ratio());default:this.error("Number, dimension, ratio or identifier is expected");}}function Xs(e){if(this.skipSC(),this.isDelim(Cp)||this.isDelim(Tp)){let t=this.source[this.tokenStart];return this.next(),this.isDelim(Qs)?(this.next(),t+"="):t}if(this.isDelim(Qs))return "=";this.error(`Expected ${e?'":", ':""}"<", ">", "=" or 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hh="Number",mh={value:String};function li(){return {type:"Number",loc:this.getLocation(this.tokenStart,this.tokenEnd),value:this.consume(10)}}function dh(e){this.token(10,e.value);}var pi={};f(pi,{generate:()=>bh,name:()=>fh,parse:()=>ui,structure:()=>gh});var fh="Operator",gh={value:String};function ui(){let e=this.tokenStart;return this.next(),{type:"Operator",loc:this.getLocation(e,this.tokenStart),value:this.substrToCursor(e)}}function bh(e){this.tokenize(e.value);}var mi={};f(mi,{generate:()=>kh,name:()=>xh,parse:()=>hi,structure:()=>yh});var xh="Parentheses",yh={children:[[]]};function hi(e,t){let r=this.tokenStart,n=null;return this.eat(21),n=e.call(this,t),this.eof||this.eat(22),{type:"Parentheses",loc:this.getLocation(r,this.tokenStart),children:n}}function kh(e){this.token(21,"("),this.children(e),this.token(22,")");}var fi={};f(fi,{generate:()=>Sh,name:()=>wh,parse:()=>di,structure:()=>vh});var wh="Percentage",vh={value:String};function di(){return {type:"Percentage",loc:this.getLocation(this.tokenStart,this.tokenEnd),value:this.consumeNumber(11)}}function Sh(e){this.token(11,e.value+"%");}var bi={};f(bi,{generate:()=>Lh,name:()=>Ch,parse:()=>gi,structure:()=>Ah,walkContext:()=>Th});var Ch="PseudoClassSelector",Th="function",Ah={name:String,children:[["Raw"],null]};function gi(){let e=this.tokenStart,t=null,r,n;return this.eat(16),this.tokenType===2?(r=this.consumeFunctionName(),n=r.toLowerCase(),this.lookupNonWSType(0)==22?t=this.createList():hasOwnProperty.call(this.pseudo,n)?(this.skipSC(),t=this.pseudo[n].call(this),this.skipSC()):(t=this.createList(),t.push(this.Raw(null,false))),this.eat(22)):r=this.consume(1),{type:"PseudoClassSelector",loc:this.getLocation(e,this.tokenStart),name:r,children:t}}function Lh(e){this.token(16,":"),e.children===null?this.token(1,e.name):(this.token(2,e.name+"("),this.children(e),this.token(22,")"));}var yi={};f(yi,{generate:()=>Ih,name:()=>Eh,parse:()=>xi,structure:()=>Ph,walkContext:()=>zh});var Eh="PseudoElementSelector",zh="function",Ph={name:String,children:[["Raw"],null]};function xi(){let e=this.tokenStart,t=null,r,n;return this.eat(16),this.eat(16),this.tokenType===2?(r=this.consumeFunctionName(),n=r.toLowerCase(),this.lookupNonWSType(0)==22?t=this.createList():hasOwnProperty.call(this.pseudo,n)?(this.skipSC(),t=this.pseudo[n].call(this),this.skipSC()):(t=this.createList(),t.push(this.Raw(null,false))),this.eat(22)):r=this.consume(1),{type:"PseudoElementSelector",loc:this.getLocation(e,this.tokenStart),name:r,children:t}}function Ih(e){this.token(16,":"),this.token(16,":"),e.children===null?this.token(1,e.name):(this.token(2,e.name+"("),this.children(e),this.token(22,")"));}var wi={};f(wi,{generate:()=>Oh,name:()=>Dh,parse:()=>ki,structure:()=>Nh});var $s=47;function Zs(){switch(this.skipSC(),this.tokenType){case 10:return this.Number();case 2:return this.Function(this.readSequence,this.scope.Value);default:this.error("Number of function is expected");}}var Dh="Ratio",Nh={left:["Number","Function"],right:["Number","Function",null]};function ki(){let e=this.tokenStart,t=Zs.call(this),r=null;return this.skipSC(),this.isDelim($s)&&(this.eatDelim($s),r=Zs.call(this)),{type:"Ratio",loc:this.getLocation(e,this.tokenStart),left:t,right:r}}function Oh(e){this.node(e.left),this.token(9,"/"),e.right?this.node(e.right):this.node(10,1);}var Si={};f(Si,{generate:()=>Bh,name:()=>Fh,parse:()=>vi,structure:()=>Mh});function Rh(){return this.tokenIndex>0&&this.lookupType(-1)===13?this.tokenIndex>1?this.getTokenStart(this.tokenIndex-1):this.firstCharOffset:this.tokenStart}var Fh="Raw",Mh={value:String};function vi(e,t){let r=this.getTokenStart(this.tokenIndex),n;return this.skipUntilBalanced(this.tokenIndex,e||this.consumeUntilBalanceEnd),t&&this.tokenStart>r?n=Rh.call(this):n=this.tokenStart,{type:"Raw",loc:this.getLocation(r,n),value:this.substring(r,n)}}function Bh(e){this.tokenize(e.value);}var Ti={};f(Ti,{generate:()=>Uh,name:()=>Wh,parse:()=>Ci,structure:()=>jh,walkContext:()=>qh});function Js(){return this.Raw(this.consumeUntilLeftCurlyBracket,true)}function _h(){let e=this.SelectorList();return e.type!=="Raw"&&this.eof===false&&this.tokenType!==23&&this.error(),e}var Wh="Rule",qh="rule",jh={prelude:["SelectorList","Raw"],block:["Block"]};function Ci(){let e=this.tokenIndex,t=this.tokenStart,r,n;return this.parseRulePrelude?r=this.parseWithFallback(_h,Js):r=Js.call(this,e),n=this.Block(true),{type:"Rule",loc:this.getLocation(t,this.tokenStart),prelude:r,block:n}}function Uh(e){this.node(e.prelude),this.node(e.block);}var Li={};f(Li,{generate:()=>Yh,name:()=>Hh,parse:()=>Ai,structure:()=>Gh});var Hh="Scope",Gh={root:["SelectorList","Raw",null],limit:["SelectorList","Raw",null]};function Ai(){let e=null,t=null;this.skipSC();let r=this.tokenStart;return this.tokenType===21&&(this.next(),this.skipSC(),e=this.parseWithFallback(this.SelectorList,()=>this.Raw(false,true)),this.skipSC(),this.eat(22)),this.lookupNonWSType(0)===1&&(this.skipSC(),this.eatIdent("to"),this.skipSC(),this.eat(21),this.skipSC(),t=this.parseWithFallback(this.SelectorList,()=>this.Raw(false,true)),this.skipSC(),this.eat(22)),{type:"Scope",loc:this.getLocation(r,this.tokenStart),root:e,limit:t}}function Yh(e){e.root&&(this.token(21,"("),this.node(e.root),this.token(22,")")),e.limit&&(this.token(1,"to"),this.token(21,"("),this.node(e.limit),this.token(22,")"));}var zi={};f(zi,{generate:()=>Qh,name:()=>Kh,parse:()=>Ei,structure:()=>Vh});var Kh="Selector",Vh={children:[["TypeSelector","IdSelector","ClassSelector","AttributeSelector","PseudoClassSelector","PseudoElementSelector","Combinator"]]};function Ei(){let e=this.readSequence(this.scope.Selector);return this.getFirstListNode(e)===null&&this.error("Selector is expected"),{type:"Selector",loc:this.getLocationFromList(e),children:e}}function Qh(e){this.children(e);}var Ii={};f(Ii,{generate:()=>Jh,name:()=>Xh,parse:()=>Pi,structure:()=>Zh,walkContext:()=>$h});var Xh="SelectorList",$h="selector",Zh={children:[["Selector","Raw"]]};function Pi(){let e=this.createList();for(;!this.eof;){if(e.push(this.Selector()),this.tokenType===18){this.next();continue}break}return {type:"SelectorList",loc:this.getLocationFromList(e),children:e}}function Jh(e){this.children(e,()=>this.token(18,","));}var Fi={};f(Fi,{generate:()=>rm,name:()=>em,parse:()=>Ri,structure:()=>tm});var Oi={};f(Oi,{decode:()=>vt,encode:()=>Ni});var Di=92,ea=34,ta=39;function vt(e){let t=e.length,r=e.charCodeAt(0),n=r===ea||r===ta?1:0,i=n===1&&t>1&&e.charCodeAt(t-1)===r?t-2:t-1,o="";for(let s=n;s<=i;s++){let u=e.charCodeAt(s);if(u===Di){if(s===i){s!==t-1&&(o=e.substr(s+1));break}if(u=e.charCodeAt(++s),K(Di,u)){let c=s-1,a=se(e,c);s=a-1,o+=je(e.substring(c+1,a));}else u===13&&e.charCodeAt(s+1)===10&&s++;}else o+=e[s];}return o}function Ni(e,t){let r=t?"'":'"',n=t?ta:ea,i="",o=false;for(let s=0;s<e.length;s++){let u=e.charCodeAt(s);if(u===0){i+="\uFFFD";continue}if(u<=31||u===127){i+="\\"+u.toString(16),o=true;continue}u===n||u===Di?(i+="\\"+e.charAt(s),o=false):(o&&(J(u)||me(u))&&(i+=" "),i+=e.charAt(s),o=false);}return r+i+r}var em="String",tm={value:String};function Ri(){return {type:"String",loc:this.getLocation(this.tokenStart,this.tokenEnd),value:vt(this.consume(5))}}function rm(e){this.token(5,Ni(e.value));}var Bi={};f(Bi,{generate:()=>am,name:()=>im,parse:()=>Mi,structure:()=>sm,walkContext:()=>om});var nm=33;function ra(){return this.Raw(null,false)}var im="StyleSheet",om="stylesheet",sm={children:[["Comment","CDO","CDC","Atrule","Rule","Raw"]]};function Mi(){let e=this.tokenStart,t=this.createList(),r;for(;!this.eof;){switch(this.tokenType){case 13:this.next();continue;case 25:if(this.charCodeAt(this.tokenStart+2)!==nm){this.next();continue}r=this.Comment();break;case 14:r=this.CDO();break;case 15:r=this.CDC();break;case 3:r=this.parseWithFallback(this.Atrule,ra);break;default:r=this.parseWithFallback(this.Rule,ra);}t.push(r);}return {type:"StyleSheet",loc:this.getLocation(e,this.tokenStart),children:t}}function am(e){this.children(e);}var Wi={};f(Wi,{generate:()=>um,name:()=>lm,parse:()=>_i,structure:()=>cm});var lm="SupportsDeclaration",cm={declaration:"Declaration"};function _i(){let e=this.tokenStart;this.eat(21),this.skipSC();let t=this.Declaration();return this.eof||this.eat(22),{type:"SupportsDeclaration",loc:this.getLocation(e,this.tokenStart),declaration:t}}function um(e){this.token(21,"("),this.node(e.declaration),this.token(22,")");}var Ui={};f(Ui,{generate:()=>dm,name:()=>hm,parse:()=>ji,structure:()=>mm});var pm=42,na=124;function qi(){this.tokenType!==1&&this.isDelim(pm)===false&&this.error("Identifier or asterisk is expected"),this.next();}var hm="TypeSelector",mm={name:String};function ji(){let e=this.tokenStart;return this.isDelim(na)?(this.next(),qi.call(this)):(qi.call(this),this.isDelim(na)&&(this.next(),qi.call(this))),{type:"TypeSelector",loc:this.getLocation(e,this.tokenStart),name:this.substrToCursor(e)}}function dm(e){this.tokenize(e.name);}var Yi={};f(Yi,{generate:()=>ym,name:()=>bm,parse:()=>Gi,structure:()=>xm});var ia=43,oa=45,Hi=63;function St(e,t){let r=0;for(let n=this.tokenStart+e;n<this.tokenEnd;n++){let i=this.charCodeAt(n);if(i===oa&&t&&r!==0)return St.call(this,e+r+1,false),-1;J(i)||this.error(t&&r!==0?"Hyphen minus"+(r<6?" or hex digit":"")+" is expected":r<6?"Hex digit is expected":"Unexpected input",n),++r>6&&this.error("Too many hex digits",n);}return this.next(),r}function nr(e){let t=0;for(;this.isDelim(Hi);)++t>e&&this.error("Too many question marks"),this.next();}function fm(e){this.charCodeAt(this.tokenStart)!==e&&this.error((e===ia?"Plus sign":"Hyphen minus")+" is expected");}function gm(){let e=0;switch(this.tokenType){case 10:if(e=St.call(this,1,true),this.isDelim(Hi)){nr.call(this,6-e);break}if(this.tokenType===12||this.tokenType===10){fm.call(this,oa),St.call(this,1,false);break}break;case 12:e=St.call(this,1,true),e>0&&nr.call(this,6-e);break;default:if(this.eatDelim(ia),this.tokenType===1){e=St.call(this,0,true),e>0&&nr.call(this,6-e);break}if(this.isDelim(Hi)){this.next(),nr.call(this,5);break}this.error("Hex digit or question mark is expected");}}var bm="UnicodeRange",xm={value:String};function Gi(){let e=this.tokenStart;return this.eatIdent("u"),gm.call(this),{type:"UnicodeRange",loc:this.getLocation(e,this.tokenStart),value:this.substrToCursor(e)}}function ym(e){this.tokenize(e.value);}var Zi={};f(Zi,{generate:()=>Am,name:()=>Cm,parse:()=>$i,structure:()=>Tm});var Xi={};f(Xi,{decode:()=>Vi,encode:()=>Qi});var km=32,Ki=92,wm=34,vm=39,Sm=40,sa=41;function Vi(e){let t=e.length,r=4,n=e.charCodeAt(t-1)===sa?t-2:t-1,i="";for(;r<n&&me(e.charCodeAt(r));)r++;for(;r<n&&me(e.charCodeAt(n));)n--;for(let o=r;o<=n;o++){let s=e.charCodeAt(o);if(s===Ki){if(o===n){o!==t-1&&(i=e.substr(o+1));break}if(s=e.charCodeAt(++o),K(Ki,s)){let u=o-1,c=se(e,u);o=c-1,i+=je(e.substring(u+1,c));}else s===13&&e.charCodeAt(o+1)===10&&o++;}else i+=e[o];}return i}function Qi(e){let t="",r=false;for(let n=0;n<e.length;n++){let i=e.charCodeAt(n);if(i===0){t+="\uFFFD";continue}if(i<=31||i===127){t+="\\"+i.toString(16),r=true;continue}i===km||i===Ki||i===wm||i===vm||i===Sm||i===sa?(t+="\\"+e.charAt(n),r=false):(r&&J(i)&&(t+=" "),t+=e.charAt(n),r=false);}return "url("+t+")"}var Cm="Url",Tm={value:String};function $i(){let e=this.tokenStart,t;switch(this.tokenType){case 7:t=Vi(this.consume(7));break;case 2:this.cmpStr(this.tokenStart,this.tokenEnd,"url(")||this.error("Function name must be `url`"),this.eat(2),this.skipSC(),t=vt(this.consume(5)),this.skipSC(),this.eof||this.eat(22);break;default:this.error("Url or Function is expected");}return {type:"Url",loc:this.getLocation(e,this.tokenStart),value:t}}function Am(e){this.token(7,Qi(e.value));}var eo={};f(eo,{generate:()=>zm,name:()=>Lm,parse:()=>Ji,structure:()=>Em});var Lm="Value",Em={children:[[]]};function Ji(){let e=this.tokenStart,t=this.readSequence(this.scope.Value);return {type:"Value",loc:this.getLocation(e,this.tokenStart),children:t}}function zm(e){this.children(e);}var ro={};f(ro,{generate:()=>Nm,name:()=>Im,parse:()=>to,structure:()=>Dm});var Pm=Object.freeze({type:"WhiteSpace",loc:null,value:" "}),Im="WhiteSpace",Dm={value:String};function to(){return this.eat(13),Pm}function Nm(e){this.token(13,e.value);}var aa={generic:true,cssWideKeywords:Ve,...Bs,node:Ct};var no={};f(no,{AtrulePrelude:()=>ca,Selector:()=>pa,Value:()=>fa});var Om=35,Rm=42,la=43,Fm=45,Mm=47,Bm=117;function Tt(e){switch(this.tokenType){case 4:return this.Hash();case 18:return this.Operator();case 21:return this.Parentheses(this.readSequence,e.recognizer);case 19:return this.Brackets(this.readSequence,e.recognizer);case 5:return this.String();case 12:return this.Dimension();case 11:return this.Percentage();case 10:return this.Number();case 2:return this.cmpStr(this.tokenStart,this.tokenEnd,"url(")?this.Url():this.Function(this.readSequence,e.recognizer);case 7:return this.Url();case 1:return this.cmpChar(this.tokenStart,Bm)&&this.cmpChar(this.tokenStart+1,la)?this.UnicodeRange():this.Identifier();case 9:{let t=this.charCodeAt(this.tokenStart);if(t===Mm||t===Rm||t===la||t===Fm)return this.Operator();t===Om&&this.error("Hex or identifier is expected",this.tokenStart+1);break}}}var ca={getNode:Tt};var _m=35,Wm=38,qm=42,jm=43,Um=47,ua=46,Hm=62,Gm=124,Ym=126;function Km(e,t){t.last!==null&&t.last.type!=="Combinator"&&e!==null&&e.type!=="Combinator"&&t.push({type:"Combinator",loc:null,name:" "});}function Vm(){switch(this.tokenType){case 19:return this.AttributeSelector();case 4:return this.IdSelector();case 16:return this.lookupType(1)===16?this.PseudoElementSelector():this.PseudoClassSelector();case 1:return this.TypeSelector();case 10:case 11:return this.Percentage();case 12:this.charCodeAt(this.tokenStart)===ua&&this.error("Identifier is expected",this.tokenStart+1);break;case 9:{switch(this.charCodeAt(this.tokenStart)){case jm:case Hm:case Ym:case Um:return this.Combinator();case ua:return this.ClassSelector();case qm:case Gm:return this.TypeSelector();case _m:return this.IdSelector();case Wm:return this.NestingSelector()}break}}}var pa={onWhiteSpace:Km,getNode:Vm};function ha(){return this.createSingleNodeList(this.Raw(null,false))}function ma(){let e=this.createList();if(this.skipSC(),e.push(this.Identifier()),this.skipSC(),this.tokenType===18){e.push(this.Operator());let t=this.tokenIndex,r=this.parseCustomProperty?this.Value(null):this.Raw(this.consumeUntilExclamationMarkOrSemicolon,false);if(r.type==="Value"&&r.children.isEmpty){for(let n=t-this.tokenIndex;n<=0;n++)if(this.lookupType(n)===13){r.children.appendData({type:"WhiteSpace",loc:null,value:" "});break}}e.push(r);}return e}function da(e){return e!==null&&e.type==="Operator"&&(e.value[e.value.length-1]==="-"||e.value[e.value.length-1]==="+")}var fa={getNode:Tt,onWhiteSpace(e,t){da(e)&&(e.value=" "+e.value),da(t.last)&&(t.last.value+=" ");},expression:ha,var:ma};var Qm=new Set(["none","and","not","or"]),ga={parse:{prelude(){let e=this.createList();if(this.tokenType===1){let t=this.substring(this.tokenStart,this.tokenEnd);Qm.has(t.toLowerCase())||e.push(this.Identifier());}return e.push(this.Condition("container")),e},block(e=false){return this.Block(e)}}};var ba={parse:{prelude:null,block(){return this.Block(true)}}};function io(e,t){return this.parseWithFallback(()=>{try{return e.call(this)}finally{this.skipSC(),this.lookupNonWSType(0)!==22&&this.error();}},t||(()=>this.Raw(null,true)))}var xa={layer(){this.skipSC();let e=this.createList(),t=io.call(this,this.Layer);return (t.type!=="Raw"||t.value!=="")&&e.push(t),e},supports(){this.skipSC();let e=this.createList(),t=io.call(this,this.Declaration,()=>io.call(this,()=>this.Condition("supports")));return (t.type!=="Raw"||t.value!=="")&&e.push(t),e}},ya={parse:{prelude(){let e=this.createList();switch(this.tokenType){case 5:e.push(this.String());break;case 7:case 2:e.push(this.Url());break;default:this.error("String or url() is expected");}return this.skipSC(),this.tokenType===1&&this.cmpStr(this.tokenStart,this.tokenEnd,"layer")?e.push(this.Identifier()):this.tokenType===2&&this.cmpStr(this.tokenStart,this.tokenEnd,"layer(")&&e.push(this.Function(null,xa)),this.skipSC(),this.tokenType===2&&this.cmpStr(this.tokenStart,this.tokenEnd,"supports(")&&e.push(this.Function(null,xa)),(this.lookupNonWSType(0)===1||this.lookupNonWSType(0)===21)&&e.push(this.MediaQueryList()),e},block:null}};var ka={parse:{prelude(){return this.createSingleNodeList(this.LayerList())},block(){return this.Block(false)}}};var wa={parse:{prelude(){return this.createSingleNodeList(this.MediaQueryList())},block(e=false){return this.Block(e)}}};var va={parse:{prelude(){return this.createSingleNodeList(this.SelectorList())},block(){return this.Block(true)}}};var Sa={parse:{prelude(){return this.createSingleNodeList(this.SelectorList())},block(){return this.Block(true)}}};var Ca={parse:{prelude(){return this.createSingleNodeList(this.Scope())},block(e=false){return this.Block(e)}}};var Ta={parse:{prelude:null,block(e=false){return this.Block(e)}}};var Aa={parse:{prelude(){return this.createSingleNodeList(this.Condition("supports"))},block(e=false){return this.Block(e)}}};var La={container:ga,"font-face":ba,import:ya,layer:ka,media:wa,nest:va,page:Sa,scope:Ca,"starting-style":Ta,supports:Aa};function Ea(){let e=this.createList();this.skipSC();e:for(;!this.eof;){switch(this.tokenType){case 1:e.push(this.Identifier());break;case 5:e.push(this.String());break;case 18:e.push(this.Operator());break;case 22:break e;default:this.error("Identifier, string or comma is expected");}this.skipSC();}return e}var Fe={parse(){return this.createSingleNodeList(this.SelectorList())}},oo={parse(){return this.createSingleNodeList(this.Selector())}},Xm={parse(){return this.createSingleNodeList(this.Identifier())}},$m={parse:Ea},ir={parse(){return this.createSingleNodeList(this.Nth())}},za={dir:Xm,has:Fe,lang:$m,matches:Fe,is:Fe,"-moz-any":Fe,"-webkit-any":Fe,where:Fe,not:Fe,"nth-child":ir,"nth-last-child":ir,"nth-last-of-type":ir,"nth-of-type":ir,slotted:oo,host:oo,"host-context":oo};var so={};f(so,{AnPlusB:()=>en,Atrule:()=>rn,AtrulePrelude:()=>on,AttributeSelector:()=>ln,Block:()=>un,Brackets:()=>hn,CDC:()=>dn,CDO:()=>gn,ClassSelector:()=>xn,Combinator:()=>kn,Comment:()=>vn,Condition:()=>Cn,Declaration:()=>An,DeclarationList:()=>zn,Dimension:()=>In,Feature:()=>Nn,FeatureFunction:()=>Rn,FeatureRange:()=>Bn,Function:()=>Wn,GeneralEnclosed:()=>jn,Hash:()=>Hn,IdSelector:()=>Vn,Identifier:()=>Yn,Layer:()=>Xn,LayerList:()=>Zn,MediaQuery:()=>ei,MediaQueryList:()=>ri,NestingSelector:()=>ii,Nth:()=>si,Number:()=>li,Operator:()=>ui,Parentheses:()=>hi,Percentage:()=>di,PseudoClassSelector:()=>gi,PseudoElementSelector:()=>xi,Ratio:()=>ki,Raw:()=>vi,Rule:()=>Ci,Scope:()=>Ai,Selector:()=>Ei,SelectorList:()=>Pi,String:()=>Ri,StyleSheet:()=>Mi,SupportsDeclaration:()=>_i,TypeSelector:()=>ji,UnicodeRange:()=>Gi,Url:()=>$i,Value:()=>Ji,WhiteSpace:()=>to});var Pa={parseContext:{default:"StyleSheet",stylesheet:"StyleSheet",atrule:"Atrule",atrulePrelude(e){return this.AtrulePrelude(e.atrule?String(e.atrule):null)},mediaQueryList:"MediaQueryList",mediaQuery:"MediaQuery",condition(e){return this.Condition(e.kind)},rule:"Rule",selectorList:"SelectorList",selector:"Selector",block(){return this.Block(true)},declarationList:"DeclarationList",declaration:"Declaration",value:"Value"},features:{supports:{selector(){return this.Selector()}},container:{style(){return this.Declaration()}}},scope:no,atrule:La,pseudo:za,node:so};var Ia={node:Ct};var Da=Zr({...aa,...Pa,...Ia});var Oa={};f(Oa,{decode:()=>Zm,encode:()=>Jm});var Na=92;function Zm(e){let t=e.length-1,r="";for(let n=0;n<e.length;n++){let i=e.charCodeAt(n);if(i===Na){if(n===t)break;if(i=e.charCodeAt(++n),K(Na,i)){let o=n-1,s=se(e,o);n=s-1,r+=je(e.substring(o+1,s));}else i===13&&e.charCodeAt(n+1)===10&&n++;}else r+=e[n];}return r}function Jm(e){let t="";if(e.length===1&&e.charCodeAt(0)===45)return "\\-";for(let r=0;r<e.length;r++){let n=e.charCodeAt(r);if(n===0){t+="\uFFFD";continue}if(n<=31||n===127||n>=48&&n<=57&&(r===0||r===1&&e.charCodeAt(0)===45)){t+="\\"+n.toString(16)+" ";continue}_e(n)?t+=e.charAt(r):t+="\\"+e.charAt(r);}return t}var{tokenize:$b,parse:Zb,generate:Jb,lexer:ex,createLexer:tx,walk:rx,find:nx,findLast:ix,findAll:ox,toPlainObject:sx,fromPlainObject:ax,fork:lx}=Da;

	// deno-lint-ignore-file no-control-regex


	// 1. Let input be the value passed to this algorithm.
	function parse$2(input) {

		// UTILITY FUNCTIONS

		// Manual is faster than RegEx
		// http://bjorn.tipling.com/state-and-regular-expressions-in-javascript
		// http://jsperf.com/whitespace-character/5
		function isSpace(c) {
			return (c === "\u0020" || // space
				c === "\u0009" || // horizontal tab
				c === "\u000A" || // new line
				c === "\u000C" || // form feed
				c === "\u000D");  // carriage return
		}

		function collectCharacters(regEx) {
			let chars;
			const match = regEx.exec(input.substring(pos));
			if (match) {
				chars = match[0];
				pos += chars.length;
				return chars;
			}
		}

		const inputLength = input.length;

		// (Don"t use \s, to avoid matching non-breaking space)
		/* eslint-disable no-control-regex */
		const regexLeadingSpaces = /^[ \t\n\r\u000c]+/;
		const regexLeadingCommasOrSpaces = /^[, \t\n\r\u000c]+/;
		const regexLeadingNotSpaces = /^[^ \t\n\r\u000c]+/;
		const regexTrailingCommas = /[,]+$/;
		const regexNonNegativeInteger = /^\d+$/;
		/* eslint-enable no-control-regex */

		// ( Positive or negative or unsigned integers or decimals, without or without exponents.
		// Must include at least one digit.
		// According to spec tests any decimal point must be followed by a digit.
		// No leading plus sign is allowed.)
		// https://html.spec.whatwg.org/multipage/infrastructure.html#valid-floating-point-number
		const regexFloatingPoint = /^-?(?:[0-9]+|[0-9]*\.[0-9]+)(?:[eE][+-]?[0-9]+)?$/;

		let url, descriptors, currentDescriptor, state, c,
			// 2. Let position be a pointer into input, initially pointing at the start
			//    of the string.
			pos = 0;
		// 3. Let candidates be an initially empty source set.
		const candidates = [];

		// 4. Splitting loop: Collect a sequence of characters that are space
		//    characters or U+002C COMMA characters. If any U+002C COMMA characters
		//    were collected, that is a parse error.		
		while (true) {
			collectCharacters(regexLeadingCommasOrSpaces);

			// 5. If position is past the end of input, return candidates and abort these steps.
			if (pos >= inputLength) {
				return candidates; // (we"re done, this is the sole return path)
			}

			// 6. Collect a sequence of characters that are not space characters,
			//    and let that be url.
			url = collectCharacters(regexLeadingNotSpaces);

			// 7. Let descriptors be a new empty list.
			descriptors = [];

			// 8. If url ends with a U+002C COMMA character (,), follow these substeps:
			//		(1). Remove all trailing U+002C COMMA characters from url. If this removed
			//         more than one character, that is a parse error.
			if (url.slice(-1) === ",") {
				url = url.replace(regexTrailingCommas, "");
				// (Jump ahead to step 9 to skip tokenization and just push the candidate).
				parseDescriptors();

				//	Otherwise, follow these substeps:
			} else {
				tokenize();
			} // (close else of step 8)

			// 16. Return to the step labeled splitting loop.
		} // (Close of big while loop.)

		/**
		 * Tokenizes descriptor properties prior to parsing
		 * Returns undefined.
		 */
		function tokenize() {

			// 8.1. Descriptor tokeniser: Skip whitespace
			collectCharacters(regexLeadingSpaces);

			// 8.2. Let current descriptor be the empty string.
			currentDescriptor = "";

			// 8.3. Let state be in descriptor.
			state = "in descriptor";

			while (true) {

				// 8.4. Let c be the character at position.
				c = input.charAt(pos);

				//  Do the following depending on the value of state.
				//  For the purpose of this step, "EOF" is a special character representing
				//  that position is past the end of input.

				// In descriptor
				if (state === "in descriptor") {
					// Do the following, depending on the value of c:

					// Space character
					// If current descriptor is not empty, append current descriptor to
					// descriptors and let current descriptor be the empty string.
					// Set state to after descriptor.
					if (isSpace(c)) {
						if (currentDescriptor) {
							descriptors.push(currentDescriptor);
							currentDescriptor = "";
							state = "after descriptor";
						}

						// U+002C COMMA (,)
						// Advance position to the next character in input. If current descriptor
						// is not empty, append current descriptor to descriptors. Jump to the step
						// labeled descriptor parser.
					} else if (c === ",") {
						pos += 1;
						if (currentDescriptor) {
							descriptors.push(currentDescriptor);
						}
						parseDescriptors();
						return;

						// U+0028 LEFT PARENTHESIS (()
						// Append c to current descriptor. Set state to in parens.
					} else if (c === "\u0028") {
						currentDescriptor = currentDescriptor + c;
						state = "in parens";

						// EOF
						// If current descriptor is not empty, append current descriptor to
						// descriptors. Jump to the step labeled descriptor parser.
					} else if (c === "") {
						if (currentDescriptor) {
							descriptors.push(currentDescriptor);
						}
						parseDescriptors();
						return;

						// Anything else
						// Append c to current descriptor.
					} else {
						currentDescriptor = currentDescriptor + c;
					}
					// (end "in descriptor"

					// In parens
				} else if (state === "in parens") {

					// U+0029 RIGHT PARENTHESIS ())
					// Append c to current descriptor. Set state to in descriptor.
					if (c === ")") {
						currentDescriptor = currentDescriptor + c;
						state = "in descriptor";

						// EOF
						// Append current descriptor to descriptors. Jump to the step labeled
						// descriptor parser.
					} else if (c === "") {
						descriptors.push(currentDescriptor);
						parseDescriptors();
						return;

						// Anything else
						// Append c to current descriptor.
					} else {
						currentDescriptor = currentDescriptor + c;
					}

					// After descriptor
				} else if (state === "after descriptor") {

					// Do the following, depending on the value of c:
					// Space character: Stay in this state.
					if (isSpace(c)) ; else if (c === "") {
						parseDescriptors();
						return;

						// Anything else
						// Set state to in descriptor. Set position to the previous character in input.
					} else {
						state = "in descriptor";
						pos -= 1;

					}
				}

				// Advance position to the next character in input.
				pos += 1;

				// Repeat this step.
			} // (close while true loop)
		}

		/**
		 * Adds descriptor properties to a candidate, pushes to the candidates array
		 * @return undefined
		 */
		// Declared outside of the while loop so that it"s only created once.
		function parseDescriptors() {

			// 9. Descriptor parser: Let error be no.
			let pError = false,

				// 10. Let width be absent.
				// 11. Let density be absent.
				// 12. Let future-compat-h be absent. (We"re implementing it now as h)
				w, d, h, i,
				desc, lastChar, value, intVal, floatVal;
			const candidate = {};

			// 13. For each descriptor in descriptors, run the appropriate set of steps
			// from the following list:
			for (i = 0; i < descriptors.length; i++) {
				desc = descriptors[i];

				lastChar = desc[desc.length - 1];
				value = desc.substring(0, desc.length - 1);
				intVal = parseInt(value, 10);
				floatVal = parseFloat(value);

				// If the descriptor consists of a valid non-negative integer followed by
				// a U+0077 LATIN SMALL LETTER W character
				if (regexNonNegativeInteger.test(value) && (lastChar === "w")) {

					// If width and density are not both absent, then let error be yes.
					if (w || d) { pError = true; }

					// Apply the rules for parsing non-negative integers to the descriptor.
					// If the result is zero, let error be yes.
					// Otherwise, let width be the result.
					if (intVal === 0) { pError = true; } else { w = intVal; }

					// If the descriptor consists of a valid floating-point number followed by
					// a U+0078 LATIN SMALL LETTER X character
				} else if (regexFloatingPoint.test(value) && (lastChar === "x")) {

					// If width, density and future-compat-h are not all absent, then let error
					// be yes.
					if (w || d || h) { pError = true; }

					// Apply the rules for parsing floating-point number values to the descriptor.
					// If the result is less than zero, let error be yes. Otherwise, let density
					// be the result.
					if (floatVal < 0) { pError = true; } else { d = floatVal; }

					// If the descriptor consists of a valid non-negative integer followed by
					// a U+0068 LATIN SMALL LETTER H character
				} else if (regexNonNegativeInteger.test(value) && (lastChar === "h")) {

					// If height and density are not both absent, then let error be yes.
					if (h || d) { pError = true; }

					// Apply the rules for parsing non-negative integers to the descriptor.
					// If the result is zero, let error be yes. Otherwise, let future-compat-h
					// be the result.
					if (intVal === 0) { pError = true; } else { h = intVal; }

					// Anything else, Let error be yes.
				} else { pError = true; }
			} // (close step 13 for loop)

			// 15. If error is still no, then append a new image source to candidates whose
			// URL is url, associated with a width width if not absent and a pixel
			// density density if not absent. Otherwise, there is a parse error.
			if (!pError) {
				candidate.url = url;
				if (w) { candidate.w = w; }
				if (d) { candidate.d = d; }
				if (h) { candidate.h = h; }
				candidates.push(candidate);
			} else if (console && console.log) {  // eslint-disable-line no-console
				console.log("Invalid srcset descriptor found in \"" + input + "\" at \"" + desc + "\"."); // eslint-disable-line no-console
			}
		} // (close parseDescriptors fn)

	}

	function serialize(srcset) {
		return srcset.map(function (candidate) {
			let descriptor = "";
			if (candidate.w) {
				descriptor += candidate.w + "w";
			}
			if (candidate.h) {
				descriptor += candidate.h + "h";
			}
			if (candidate.d) {
				descriptor += candidate.d + "x";
			}
			return candidate.url + (descriptor ? " " + descriptor : "");
		}).join(", ");
	}

	/* global URL */


	const BASE64_ENCODING$1 = "base64";
	const HREF_ATTRIBUTE = "href";
	const SRC_ATTRIBUTE = "src";
	const TITLE_ATTRIBUTE = "title";
	const SRCSET_ATTRIBUTE = "srcset";
	const SRCDOC_ATTRIBUTE = "srcdoc";
	const CONTENT_ATTRIBUTE$1 = "content";
	const STYLE_ATTRIBUTE = "style";
	const MEDIA_ATTRIBUTE = "media";
	const BACKGROUND_ATTRIBUTE = "background";
	const REL_ATTRIBUTE = "rel";
	const DATA_ATTRIBUTE = "data";
	const TYPE_ATTRIBUTE = "type";
	const PING_ATTRIBUTE = "ping";
	const HTTP_EQUIV_ATTRIBUTE$1 = "http-equiv";
	const INTEGRITY_ATTRIBUTE = "integrity";
	const CHARSET_ATTRIBUTE$1 = "charset";
	const SHADOWMODE_ATTRIBUTE = "shadowmode";
	const SHADOWROOTMODE_ATTRIBUTE = "shadowrootmode";
	const SIZES_ATTRIBUTE = "sizes";
	const STYLESHEET_CONTENT_TYPE = "text/css";
	const CID_PROTOCOL = "cid:";
	const DATA_PROTOCOL = "data:";
	const HTTP_PROTOCOL = "http:";
	const HTTPS_PROTOCOL = "https:";
	const URN_PROTOCOL = "urn:";
	const AT_RULE$1 = "Atrule";
	const IMPORT_RULE = "import";
	const URL_FUNCTION = "Url";
	const STYLESHEET_CONTEXT = "stylesheet";
	const DECLARATION_LIST_CONTEXT = "declarationList";
	const BASE_TAG = "BASE";
	const LINK_TAG = "LINK";
	const STYLE_TAG = "STYLE";
	const IMG_TAG = "IMG";
	const AUDIO_TAG = "AUDIO";
	const VIDEO_TAG = "VIDEO";
	const SOURCE_TAG = "SOURCE";
	const SCRIPT_TAG = "SCRIPT";
	const BODY_TAG = "BODY";
	const TABLE_TAG = "TABLE";
	const TD_TAG = "TD";
	const TH_TAG = "TH";
	const INPUT_TAG = "INPUT";
	const IFRAME_TAG = "IFRAME";
	const FRAME_TAG = "FRAME";
	const EMBED_TAG = "EMBED";
	const OBJECT_TAG = "OBJECT";
	const A_TAG = "A";
	const AREA_TAG = "AREA";
	const META_TAG$1 = "META";
	const TEMPLATE_TAG = "TEMPLATE";
	const HEAD_TAG = "HEAD";
	const TITLE_TAG = "TITLE";
	const ORIGINAL_URL_FUNCTION_NAME = "--mhtml-to-html-url";
	const ORIGINAL_URL_ATTRIBUTE_PREFIX = "data-original-";
	const CONTENT_TYPE_HEADER$1 = "Content-Type";
	const REL_ATTRIBUTE_STYLESHEET = "stylesheet";
	const REL_ATTRIBUTE_ICON = "icon";
	const REL_ATTRIBUTE_CANONICAL = "canonical";
	const REL_ATTRIBUTE_ALTERNATE = "alternate";
	const HTTP_EQUIV_ATTRIBUTE_REFRESH = "refresh";
	const HTTP_EQUIV_ATTRIBUTE_CSP = "content-security-policy";
	const TYPE_ATTRIBUTE_IMAGE = "image";
	const REL_REMOVED_VALUES_REGEXP = /(preconnect|prerender|dns-prefetch|preload|prefetch|manifest|modulepreload)/gi;
	const URN_ERROR_REGEXP = /^urn:[^:]+:(.+)$/;
	const APPLICATION_OCTET_STREAM_CONTENT_TYPE = "application/octet-stream";
	const JSON_LD_CONTENT_TYPE = "application/ld+json";
	const TEXT_HTML_CONTENT_TYPE = "text/html";
	const UTF8_CHARSET$1 = "utf-8";
	const INDEX_PAGE_NOT_FOUND_ERROR = "Index page not found";
	const CID_REGEXP = /^<.+>$/;
	const CONTENT_TYPE_SEPARATOR = ";";
	const DATA_URI_PAYLOAD_SEPARATOR = ",";
	const EMPTY_STRING = "";
	const ORIGINAL_URL_FUNCTION_REGEXP = /url\(--mhtml-to-html-url\\\(\\"(.*?)\\"\\\)\\ /g;
	const ORIGINAL_URL_COMMENT = "/* original URL: $1 */ url(";
	const DEFAULT_CSP = "default-src 'none'; connect-src 'self' data:; font-src 'self' data:; img-src 'self' data:; style-src 'self' 'unsafe-inline' data:; frame-src 'self' data:; media-src 'self' data:; object-src 'self' data:; ";
	const JS_ENABLED_CSP = "script-src 'self' 'unsafe-inline' data:;";
	const JS_DISABLED_CSP = "script-src 'none';";
	const CSS_FUNCTION_PARENTHESIS_START = "(";
	const CSS_FUNCTION_PARENTHESIS_END = ") ";
	const SUBJECT_HEADER = "Subject";
	const DATE_HEADER = "Date";
	const FROM_HEADER = "From";
	const JSON_LD_PAGE_INFO = {
	    "@context": "https://schema.org",
	    "@type": "WebPage",
	    "additionalProperty": {
	        "@type": "PropertyValue",
	        "name": "savedBy"
	    }
	};

	async function fetchAndConvert(mhtml, config, failedResources = []) {
	    if (config.fetchMissingResources) {
	        let { fetch } = config;
	        let missingResources = [];
	        if (!fetch) {
	            fetch = globalThis.fetch;
	        }
	        missingResources = convert$1(mhtml, config);
	        missingResources = missingResources.filter(resource => !failedResources.includes(resource.id));
	        if (missingResources.length) {
	            await Promise.all(missingResources.map(async resource => {
	                const { id, transferEncoding } = resource;
	                let url = id;
	                const urnErrorMatch = url.match(URN_ERROR_REGEXP);
	                if (urnErrorMatch) {
	                    url = urnErrorMatch[1];
	                }
	                try {
	                    const response = await fetch(url);
	                    if (response.ok) {
	                        resource.contentType = response.headers.get(CONTENT_TYPE_HEADER$1) || APPLICATION_OCTET_STREAM_CONTENT_TYPE;
	                        if (transferEncoding === BASE64_ENCODING$1) {
	                            const bytes = await response.bytes();
	                            resource.data = decodeBinary(bytes);
	                        } else {
	                            resource.data = await response.text();
	                        }
	                        mhtml.resources[id] = resource;
	                    } else if (!failedResources.includes(id)) {
	                        failedResources.push(id);
	                    }
	                    // eslint-disable-next-line no-unused-vars
	                } catch (_) {
	                    if (!failedResources.includes(id)) {
	                        failedResources.push(id);
	                    }
	                }
	            }));
	            return fetchAndConvert(mhtml, config, failedResources);
	        } else {
	            return convert$1(mhtml, { ...config, fetchMissingResources: false });
	        }
	    } else {
	        return convert$1(mhtml, config);
	    }
	}

	function convert$1({ headers, frames, resources, unfoundResources = new Set(), index, id }, { DOMParser, enableScripts, fetchMissingResources } = { DOMParser: globalThis.DOMParser }) {
	    let resource = resources[index];
	    if (!resource) {
	        throw new Error(INDEX_PAGE_NOT_FOUND_ERROR);
	    }
	    let base = resource.id;
	    if (resource.transferEncoding === BASE64_ENCODING$1) {
	        resource.transferEncoding = undefined;
	        resource.data = decodeBase64(resource.data, getCharset(resource.contentType));
	    }
	    const contentType = resource.contentType.split(CONTENT_TYPE_SEPARATOR)[0];
	    const dom = parseDOM(resource.data, contentType, DOMParser);
	    const document = dom.document;
	    let nodes = [document];
	    const baseElement = document.getElementsByTagName(BASE_TAG)[0];
	    if (baseElement) {
	        const href = baseElement.getAttribute(HREF_ATTRIBUTE);
	        if (href) {
	            base = resolvePath(href, base);
	        }
	        baseElement.remove();
	    }
	    if (!fetchMissingResources) {
	        resource.used = true;
	    }
	    nodes = [document];
	    let canonicalLinkElement;
	    const stylesheets = {};
	    const missingResources = [];
	    const removedNodes = [];
	    const favicons = [];
	    let title;
	    while (nodes.length) {
	        const childNode = nodes.shift();
	        if (childNode.childNodes) {
	            for (const child of childNode.childNodes) {
	                let href, src;
	                if (child.getAttribute) {
	                    href = child.getAttribute(HREF_ATTRIBUTE);
	                    if (href) {
	                        href = resolvePath(href, base);
	                    }
	                    src = child.getAttribute(SRC_ATTRIBUTE);
	                    if (src) {
	                        src = resolvePath(src, base);
	                    }
	                    const style = child.getAttribute(STYLE_ATTRIBUTE);
	                    if (style) {
	                        const declarations = replaceStylesheetUrls(resources, base, { data: style }, { context: DECLARATION_LIST_CONTEXT }, stylesheets, fetchMissingResources && missingResources, unfoundResources);
	                        if (!fetchMissingResources) {
	                            child.setAttribute(STYLE_ATTRIBUTE, declarations);
	                        }
	                    }
	                    const integrity = child.getAttribute(INTEGRITY_ATTRIBUTE);
	                    if (integrity) {
	                        child.removeAttribute(INTEGRITY_ATTRIBUTE);
	                    }
	                }
	                if (!enableScripts && child.removeAttribute) {
	                    EVENT_HANDLER_ATTRIBUTES.forEach(attribute => child.removeAttribute(attribute));
	                }
	                if (child.tagName && child.tagName.toUpperCase() === LINK_TAG && href) {
	                    let rel = child.getAttribute(REL_ATTRIBUTE);
	                    if (rel) {
	                        rel = rel.toLowerCase();
	                        if (rel === REL_ATTRIBUTE_STYLESHEET) {
	                            resource = getResource(resources, href, child.getAttribute(HREF_ATTRIBUTE));
	                            if (resource) {
	                                let base = resource.id;
	                                if (base.startsWith(CID_PROTOCOL)) {
	                                    if (index.match(CID_REGEXP)) {
	                                        base = id;
	                                    } else {
	                                        base = index;
	                                    }
	                                }
	                                const stylesheet = replaceStylesheetUrls(resources, base, resource, { context: STYLESHEET_CONTEXT }, stylesheets, fetchMissingResources && missingResources, unfoundResources);
	                                if (!fetchMissingResources) {
	                                    const styleElement = document.createElement(STYLE_TAG);
	                                    styleElement.type = STYLESHEET_CONTENT_TYPE;
	                                    const media = child.getAttribute(MEDIA_ATTRIBUTE);
	                                    if (media) {
	                                        styleElement.setAttribute(MEDIA_ATTRIBUTE, media);
	                                    }
	                                    resource.used = true;
	                                    resource.data = stylesheet;
	                                    if (!href.startsWith(DATA_PROTOCOL)) {
	                                        styleElement.setAttribute(ORIGINAL_URL_ATTRIBUTE_PREFIX + HREF_ATTRIBUTE, href);
	                                    }
	                                    styleElement.appendChild(document.createTextNode(resource.data));
	                                    child.replaceWith(styleElement);
	                                }
	                            } else if (fetchMissingResources) {
	                                addMissingResource(missingResources, href);
	                            } else {
	                                unfoundResources.add(href);
	                                setAttribute(child, HREF_ATTRIBUTE, href);
	                            }
	                            if (!fetchMissingResources) {
	                                const title = child.getAttribute(TITLE_ATTRIBUTE);
	                                if (title && rel.includes(REL_ATTRIBUTE_ALTERNATE)) {
	                                    removedNodes.push(child);
	                                }
	                            }
	                        } else if (rel.includes(REL_ATTRIBUTE_ICON)) {
	                            resource = getResource(resources, href, child.getAttribute(HREF_ATTRIBUTE));
	                            const media = child.getAttribute(MEDIA_ATTRIBUTE);
	                            const type = child.getAttribute(TYPE_ATTRIBUTE);
	                            const sizes = child.getAttribute(SIZES_ATTRIBUTE);
	                            if (resource) {
	                                if (!fetchMissingResources) {
	                                    resource.used = true;
	                                    const resourceURI = getResourceURI(resource);
	                                    setAttribute(child, HREF_ATTRIBUTE, resourceURI);
	                                    favicons.push({ href: resourceURI, media, type, sizes, originalHref: href });
	                                }
	                            } else if (fetchMissingResources) {
	                                addMissingResource(missingResources, href, BASE64_ENCODING$1);
	                            } else {
	                                unfoundResources.add(href);
	                                setAttribute(child, HREF_ATTRIBUTE, href);
	                                favicons.push({ href, media, type, sizes });
	                            }
	                        } else if (rel == REL_ATTRIBUTE_CANONICAL && !fetchMissingResources) {
	                            canonicalLinkElement = child;
	                        }
	                        if (!fetchMissingResources) {
	                            const relValue = rel
	                                .replace(REL_REMOVED_VALUES_REGEXP, EMPTY_STRING)
	                                .trim();
	                            if (relValue.length) {
	                                child.setAttribute(REL_ATTRIBUTE, relValue);
	                            } else {
	                                removedNodes.push(child);
	                            }
	                        }
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === STYLE_TAG) {
	                    const style = replaceStylesheetUrls(resources, base, { data: child.textContent }, { context: STYLESHEET_CONTEXT }, stylesheets, fetchMissingResources && missingResources, unfoundResources);
	                    if (!fetchMissingResources) {
	                        const styleElement = document.createElement(STYLE_TAG);
	                        styleElement.type = STYLESHEET_CONTENT_TYPE;
	                        const media = child.getAttribute(MEDIA_ATTRIBUTE);
	                        if (media) {
	                            styleElement.setAttribute(MEDIA_ATTRIBUTE, media);
	                        }
	                        styleElement.appendChild(document.createTextNode(style));
	                        child.replaceWith(styleElement);
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === IMG_TAG || child.tagName && child.tagName.toUpperCase() === AUDIO_TAG || child.tagName && child.tagName.toUpperCase() === VIDEO_TAG || child.tagName && child.tagName.toUpperCase() === SOURCE_TAG || child.tagName && child.tagName.toUpperCase() === SCRIPT_TAG) {
	                    if (src) {
	                        resource = getResource(resources, src, child.getAttribute(SRC_ATTRIBUTE));
	                        if (resource) {
	                            if (!fetchMissingResources) {
	                                resource.used = true;
	                                setAttribute(child, SRC_ATTRIBUTE, getResourceURI(resource));
	                            }
	                        } else if (fetchMissingResources) {
	                            addMissingResource(missingResources, src, BASE64_ENCODING$1);
	                        } else {
	                            unfoundResources.add(src);
	                            setAttribute(child, SRC_ATTRIBUTE, src);
	                        }
	                    }
	                    if (child.tagName && child.tagName.toUpperCase() === IMG_TAG || child.tagName && child.tagName.toUpperCase() === SOURCE_TAG) {
	                        const srcset = child.getAttribute(SRCSET_ATTRIBUTE);
	                        if (srcset) {
	                            const srcsetData = parse$2(srcset).map(data => {
	                                const src = resolvePath(data.url, base);
	                                const resource = getResource(resources, src, data.url);
	                                if (resource) {
	                                    if (!fetchMissingResources) {
	                                        resource.used = true;
	                                        data.url = getResourceURI(resource);
	                                    }
	                                } else if (fetchMissingResources) {
	                                    addMissingResource(missingResources, src, BASE64_ENCODING$1);
	                                } else {
	                                    unfoundResources.add(src);
	                                    data.url = src;
	                                }
	                                return data;
	                            });
	                            if (!fetchMissingResources) {
	                                setAttribute(child, SRCSET_ATTRIBUTE, serialize(srcsetData));
	                            }
	                        }
	                    } else if (child.tagName && child.tagName.toUpperCase() === SCRIPT_TAG && !fetchMissingResources) {
	                        let type = child.getAttribute(TYPE_ATTRIBUTE);
	                        if (type) {
	                            type = type.toLowerCase();
	                        }
	                        if (!enableScripts && (!type || type !== JSON_LD_CONTENT_TYPE)) {
	                            removedNodes.push(child);
	                        }
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === BODY_TAG || child.tagName && child.tagName.toUpperCase() === TABLE_TAG || child.tagName && child.tagName.toUpperCase() === TD_TAG || child.tagName && child.tagName.toUpperCase() === TH_TAG) {
	                    let background = child.getAttribute(BACKGROUND_ATTRIBUTE);
	                    if (background && !background.startsWith(DATA_PROTOCOL)) {
	                        background = resolvePath(background, base);
	                        resource = getResource(resources, background, child.getAttribute(BACKGROUND_ATTRIBUTE));
	                        if (resource) {
	                            if (!fetchMissingResources) {
	                                resource.used = true;
	                                setAttribute(child, BACKGROUND_ATTRIBUTE, getResourceURI(resource));
	                            }
	                        } else if (fetchMissingResources) {
	                            addMissingResource(missingResources, background, BASE64_ENCODING$1);
	                        } else {
	                            unfoundResources.add(background);
	                            setAttribute(child, BACKGROUND_ATTRIBUTE, background);
	                        }
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === INPUT_TAG) {
	                    const type = child.getAttribute(TYPE_ATTRIBUTE);
	                    if (type && type.toLowerCase() === TYPE_ATTRIBUTE_IMAGE && src) {
	                        resource = getResource(resources, src, child.getAttribute(SRC_ATTRIBUTE));
	                        if (resource) {
	                            if (!fetchMissingResources) {
	                                resource.used = true;
	                                setAttribute(child, SRC_ATTRIBUTE, getResourceURI(resource));
	                            }
	                        } else if (fetchMissingResources) {
	                            addMissingResource(missingResources, src, BASE64_ENCODING$1);
	                        } else {
	                            unfoundResources.add(src);
	                            setAttribute(child, SRC_ATTRIBUTE, src);
	                        }
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === IFRAME_TAG || child.tagName && child.tagName.toUpperCase() === FRAME_TAG || child.tagName && child.tagName.toUpperCase() === EMBED_TAG || child.tagName && child.tagName.toUpperCase() === OBJECT_TAG) {
	                    let id, attribute;
	                    if (child.tagName && child.tagName.toUpperCase() === OBJECT_TAG) {
	                        attribute = DATA_ATTRIBUTE;
	                        src = child.getAttribute(DATA_ATTRIBUTE);
	                        if (src) {
	                            src = resolvePath(src, base);
	                        }
	                    } else {
	                        attribute = SRC_ATTRIBUTE;
	                    }
	                    if (src) {
	                        if (src.startsWith(CID_PROTOCOL)) {
	                            id = `<${src.split(CID_PROTOCOL)[1]}>`;
	                            resource = frames[id];
	                        } else {
	                            id = src;
	                            resource = getResource(resources, src, child.getAttribute(attribute));
	                        }
	                        if (resource) {
	                            if (child.tagName && child.tagName.toUpperCase() === EMBED_TAG || child.tagName && child.tagName.toUpperCase() === OBJECT_TAG) {
	                                if (!fetchMissingResources) {
	                                    resource.used = true;
	                                    setAttribute(child, attribute, getResourceURI(resource));
	                                }
	                            } else {
	                                const result = convert$1({
	                                    resources: Object.assign({}, resources, { [id]: resource }),
	                                    unfoundResources,
	                                    frames: frames,
	                                    index: id,
	                                    id: resource.id
	                                }, { DOMParser, enableScripts, fetchMissingResources });
	                                if (fetchMissingResources) {
	                                    for (const missingResource of result) {
	                                        if (!missingResources.find(resource => resource.id === missingResource.id)) {
	                                            missingResources.push(missingResource);
	                                        }
	                                    }
	                                } else {
	                                    resource.used = true;
	                                    if (child.tagName && child.tagName.toUpperCase() === IFRAME_TAG) {
	                                        setAttribute(child, SRC_ATTRIBUTE);
	                                        child.removeAttribute(SRC_ATTRIBUTE);
	                                        child.setAttribute(SRCDOC_ATTRIBUTE, result.data);
	                                    } else {
	                                        setAttribute(child, attribute, DATA_PROTOCOL + TEXT_HTML_CONTENT_TYPE + DATA_URI_PAYLOAD_SEPARATOR + encodeURIComponent(result.data));
	                                    }
	                                }
	                            }
	                        } else if (fetchMissingResources) {
	                            addMissingResource(missingResources, src);
	                        } else {
	                            unfoundResources.add(src);
	                            setAttribute(child, attribute, src);
	                        }
	                    }
	                } else if ((child.tagName && child.tagName.toUpperCase() === A_TAG || child.tagName && child.tagName.toUpperCase() === AREA_TAG) && !fetchMissingResources) {
	                    if (href) {
	                        try {
	                            const url = new URL(child.getAttribute(HREF_ATTRIBUTE), base);
	                            const hash = url.hash;
	                            url.hash = EMPTY_STRING;
	                            if (url == base && hash) {
	                                child.setAttribute(HREF_ATTRIBUTE, hash);
	                            } else {
	                                child.setAttribute(HREF_ATTRIBUTE, href);
	                            }
	                            // eslint-disable-next-line no-unused-vars
	                        } catch (_) {
	                            child.setAttribute(HREF_ATTRIBUTE, href);
	                        }
	                    }
	                    child.removeAttribute(PING_ATTRIBUTE);
	                } else if (child.tagName && child.tagName.toUpperCase() === META_TAG$1 && !fetchMissingResources) {
	                    let httpEquiv = child.getAttribute(HTTP_EQUIV_ATTRIBUTE$1);
	                    if (httpEquiv) {
	                        httpEquiv = httpEquiv.toLowerCase();
	                        if (httpEquiv === HTTP_EQUIV_ATTRIBUTE_REFRESH || httpEquiv === HTTP_EQUIV_ATTRIBUTE_CSP) {
	                            removedNodes.push(child);
	                        }
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === TEMPLATE_TAG && !fetchMissingResources) {
	                    const shadowModeAttribute = child.getAttribute(SHADOWMODE_ATTRIBUTE);
	                    if (shadowModeAttribute) {
	                        child.removeAttribute(SHADOWMODE_ATTRIBUTE);
	                        child.setAttribute(SHADOWROOTMODE_ATTRIBUTE, shadowModeAttribute);
	                    }
	                    if (child.content) {
	                        child.content.childNodes.forEach(node => nodes.push(node));
	                    }
	                } else if (child.tagName && child.tagName.toUpperCase() === TITLE_TAG && !fetchMissingResources && childNode.tagName && childNode.tagName.toUpperCase() === HEAD_TAG && title === undefined && child.textContent) {
	                    title = child.textContent;
	                }
	                nodes.push(child);
	            }
	        }
	    }
	    if (fetchMissingResources) {
	        return missingResources;
	    } else {
	        removedNodes.forEach(node => node.remove());
	        if (!canonicalLinkElement) {
	            const linkElement = document.createElement(LINK_TAG);
	            linkElement.setAttribute(REL_ATTRIBUTE, REL_ATTRIBUTE_CANONICAL);
	            linkElement.setAttribute(HREF_ATTRIBUTE, index);
	            document.head.appendChild(linkElement);
	        }
	        let metaElement = document.createElement(META_TAG$1);
	        metaElement.setAttribute(HTTP_EQUIV_ATTRIBUTE$1, HTTP_EQUIV_ATTRIBUTE_CSP);
	        let csp = DEFAULT_CSP;
	        if (enableScripts) {
	            csp += JS_ENABLED_CSP;
	        } else {
	            csp += JS_DISABLED_CSP;
	        }
	        metaElement.setAttribute(CONTENT_ATTRIBUTE$1, csp);
	        if (document.head.firstChild) {
	            document.head.prepend(metaElement);
	        } else {
	            document.head.appendChild(metaElement);
	        }
	        metaElement.setAttribute(CONTENT_ATTRIBUTE$1, csp);
	        metaElement = document.createElement(META_TAG$1);
	        metaElement.setAttribute(CHARSET_ATTRIBUTE$1, UTF8_CHARSET$1);
	        document.head.prepend(metaElement);
	        if (headers) {
	            const pageInfoElement = document.createElement(SCRIPT_TAG);
	            pageInfoElement.setAttribute(TYPE_ATTRIBUTE, JSON_LD_CONTENT_TYPE);
	            pageInfoElement.appendChild(document.createTextNode(JSON.stringify(getPageInfo(headers, index), null, 2)));
	            if (document.head.firstChild) {
	                document.head.firstChild.after(pageInfoElement);
	            } else {
	                document.head.appendChild(pageInfoElement);
	            }
	        }
	        if (unfoundResources.size) {
	            unfoundResources.forEach(id => {
	                if (!id.startsWith(DATA_PROTOCOL)) {
	                    resources[id] = { id, notFound: true, used: true };
	                }
	            });
	        }
	        return {
	            title,
	            favicons,
	            data: dom.serialize()
	        };
	    }
	}

	function setAttribute(element, attribute, newValue) {
	    const value = element.getAttribute(attribute);
	    if (value && !value.startsWith(DATA_PROTOCOL) && value !== newValue) {
	        element.setAttribute(ORIGINAL_URL_ATTRIBUTE_PREFIX + attribute, value);
	    }
	    if (newValue !== undefined) {
	        element.setAttribute(attribute, newValue);
	    }
	}

	function replaceStylesheetUrls(resources, base, resource, options = {}, stylesheets, missingResources, unfoundResources) {
	    let ast;
	    if (resource.id !== undefined) {
	        if (stylesheets[resource.id]) {
	            return stylesheets[resource.id].data;
	        } else {
	            stylesheets[resource.id] = {};
	        }
	    }
	    try {
	        ast = Zb(resource.data, options);
	        // eslint-disable-next-line no-unused-vars
	    } catch (_) {
	        // ignored
	    }
	    if (ast) {
	        rx(ast, node => {
	            if (node.type === URL_FUNCTION) {
	                const path = node.value;
	                if (!path.startsWith(DATA_PROTOCOL) && !path.startsWith(ORIGINAL_URL_FUNCTION_NAME)) {
	                    const id = resolvePath(path, base);
	                    const resource = getResource(resources, id, path);
	                    if (resource) {
	                        if (!missingResources) {
	                            resource.used = true;
	                            if (isStylesheet(resource.contentType)) {
	                                resource.data = replaceStylesheetUrls(resources, resource.id, resource, { context: STYLESHEET_CONTEXT }, stylesheets, missingResources, unfoundResources);
	                            }
	                            node.value = getOriginalUrlFunction(id, getResourceURI(resource));
	                        }
	                    } else if (missingResources) {
	                        addMissingResource(missingResources, id, BASE64_ENCODING$1);
	                    } else {
	                        unfoundResources.add(id);
	                        node.value = getOriginalUrlFunction(id);
	                    }
	                }
	            } else if (node.type === AT_RULE$1 && node.name.toLowerCase() === IMPORT_RULE) {
	                const path = node.prelude.children.first.value;
	                if (!path.startsWith(DATA_PROTOCOL) && !path.startsWith(ORIGINAL_URL_FUNCTION_NAME)) {
	                    const id = resolvePath(path, base);
	                    const resource = getResource(resources, id, path);
	                    if (resource) {
	                        resource.data = replaceStylesheetUrls(resources, resource.id, resource, { context: STYLESHEET_CONTEXT }, stylesheets, missingResources, unfoundResources);
	                        if (!missingResources) {
	                            resource.used = true;
	                            node.prelude.children.first.value = getOriginalUrlFunction(id, getResourceURI(resource));
	                        }
	                    } else if (missingResources) {
	                        addMissingResource(missingResources, id);
	                    } else {
	                        unfoundResources.add(id);
	                        node.prelude.children.first.value = getOriginalUrlFunction(id);
	                    }
	                }
	            }
	        });
	        try {
	            const result = Jb(ast);
	            if (resource.id !== undefined) {
	                stylesheets[resource.id].data = result;
	            }
	            return result.replace(ORIGINAL_URL_FUNCTION_REGEXP, ORIGINAL_URL_COMMENT);
	            // eslint-disable-next-line no-unused-vars
	        } catch (_) {
	            return resource.data;
	        }
	    } else {
	        return resource.data;
	    }
	}

	function getResource(resources, id, rawId) {
	    let resource = resources[id];
	    if (!resource) {
	        resource = resources[rawId];
	    }
	    return resource;
	}

	function addMissingResource(missingResources, id, transferEncoding) {
	    if ((id.startsWith(HTTP_PROTOCOL) || id.startsWith(HTTPS_PROTOCOL) || id.startsWith(URN_PROTOCOL)) && !missingResources.find(resource => resource.id === id)) {
	        missingResources.push({ id, transferEncoding });
	    }
	}

	function getOriginalUrlFunction(id, resourceURI = id) {
	    return ORIGINAL_URL_FUNCTION_NAME + CSS_FUNCTION_PARENTHESIS_START + JSON.stringify(id) + CSS_FUNCTION_PARENTHESIS_END + resourceURI;
	}

	function getPageInfo(headers, index) {
	    return {
	        ...JSON_LD_PAGE_INFO,
	        url: index,
	        name: decodeMimeHeader(headers[SUBJECT_HEADER]),
	        dateCreated: headers[DATE_HEADER],
	        additionalProperty: {
	            ...JSON_LD_PAGE_INFO.additionalProperty,
	            value: decodeMimeHeader(headers[FROM_HEADER])
	        }
	    };
	}

	const MHTML_HEADERS = 0;
	const MTHML_CONTENT = 1;
	const MHTML_DATA = 2;
	const MHTML_END = 3;
	const STRING_TYPE = "string";
	const HEADER_SEPARATOR = ":";
	const QUOTED_PRINTABLE_ENCODING = "quoted-printable";
	const BINARY_ENCODING = "binary";
	const CONTENT_TYPE_HEADER = "content-type";
	const CONTENT_TRANSFER_ENCODING_HEADER = "content-transfer-encoding";
	const CONTENT_ID_HEADER = "content-id";
	const CONTENT_LOCATION_HEADER = "content-location";
	const BASE64_ENCODING = "base64";
	const UTF8_CHARSET = "utf-8";
	const META_TAG = "META";
	const CONTENT_ATTRIBUTE = "content";
	const CHARSET_ATTRIBUTE = "charset";
	const HTTP_EQUIV_ATTRIBUTE = "http-equiv";
	const AT_RULE = "Atrule";
	const CHARSET_IDENTIFIER = "charset";
	const RANDOM_ID_PREFIX = "_";

	function parse$1(mhtml, { DOMParser } = { DOMParser: globalThis.DOMParser }, context = { resources: {}, frames: {} }) {
	    // deno-lint-ignore valid-typeof
	    if (typeof mhtml === STRING_TYPE) {
	        mhtml = encodeString(mhtml);
	    }
	    const headers = {};
	    const { resources, frames } = context;
	    let resource, transferEncoding, boundary, headerKey;
	    let content = {};
	    let state = MHTML_HEADERS;
	    let indexMhtml = 0;
	    let indexStartEmbeddedMhtml;
	    while (state !== MHTML_END && indexMhtml < mhtml.length - 1) {
	        let next;
	        if (state === MHTML_HEADERS) {
	            next = getLine();
	            if (!isLineFeed(next)) {
	                splitHeaders(next, headers);
	            } else {
	                if (headers[CONTENT_TYPE_HEADER]) {
	                    boundary = getBoundary(headers[CONTENT_TYPE_HEADER]);
	                }
	                if (boundary) {
	                    while (indexOf(next, boundary) === -1 && indexMhtml < mhtml.length - 1) {
	                        next = getLine();
	                    }
	                } else {
	                    const previousIndex = indexMhtml;
	                    next = getLine(transferEncoding);
	                    if (!boundary && startsWithBoundary(next)) {
	                        boundary = decodeString(next);
	                    } else {
	                        indexMhtml = previousIndex;
	                    }
	                }
	                content = {};
	                state = MTHML_CONTENT;
	            }
	        } else if (state === MTHML_CONTENT) {
	            if (boundary) {
	                if (indexStartEmbeddedMhtml === undefined) {
	                    indexStartEmbeddedMhtml = indexMhtml;
	                }
	                next = getLine();
	                if (!isLineFeed(next)) {
	                    splitHeaders(next, content);
	                } else {
	                    initResource(content);
	                    if (!resource.contentType || !isMultipartAlternative(resource.contentType)) {
	                        indexStartEmbeddedMhtml = undefined;
	                    }
	                    state = MHTML_DATA;
	                }
	            } else {
	                initResource(headers);
	                state = MHTML_DATA;
	            }
	        } else if (state === MHTML_DATA) {
	            const indexEndData = parseResourceData();
	            if (indexStartEmbeddedMhtml !== undefined && indexEndData !== undefined) {
	                resource.used = true;
	                context.index = convertEmbeddedMhtml(indexEndData);
	            } else {
	                processResource();
	            }
	            state = (indexMhtml >= mhtml.length - 1 ? MHTML_END : MTHML_CONTENT);
	        }
	    }
	    return { headers, frames, resources, index: context.index };

	    function getLine(transferEncoding) {
	        const indexStart = indexMhtml;
	        while (!isLineFeed([mhtml[indexMhtml]]) && indexMhtml++ < mhtml.length - 1);
	        indexMhtml++;
	        const line = mhtml.slice(indexStart, indexMhtml);
	        return transferEncoding === QUOTED_PRINTABLE_ENCODING ? decodeQuotedPrintable(line) : line;
	    }

	    function splitHeaders(line, obj) {
	        const lineString = decodeString(line);
	        const indexColumn = lineString.indexOf(HEADER_SEPARATOR);
	        if (indexColumn > -1) {
	            headerKey = lineString.substring(0, indexColumn).trim().toLowerCase();
	            obj[headerKey] = lineString.substring(indexColumn + 1, lineString.length).trim();
	        } else {
	            obj[headerKey] += lineString.trim();
	        }
	    }

	    function initResource(resourceData) {
	        transferEncoding = resourceData[CONTENT_TRANSFER_ENCODING_HEADER];
	        const contentType = resourceData[CONTENT_TYPE_HEADER];
	        const contentId = resourceData[CONTENT_ID_HEADER];
	        let id = resourceData[CONTENT_LOCATION_HEADER];
	        if (transferEncoding) {
	            transferEncoding = transferEncoding.toLowerCase();
	        }
	        resource = {
	            transferEncoding,
	            contentType,
	            data: [],
	            id
	        };
	        if (id === undefined) {
	            if (contentId !== undefined) {
	                id = contentId;
	            } else {
	                do {
	                    id = RANDOM_ID_PREFIX + Math.random().toString(36).substring(2);
	                } while (resources[id]);
	            }
	            resource.id = id;
	        }
	        if (context.index === undefined && isDocument(contentType)) {
	            context.index = id;
	        }
	        if (contentId !== undefined) {
	            frames[contentId] = resource;
	        }
	        if (!resources[id]) {
	            resources[id] = resource;
	        }
	        content = {};
	    }

	    function parseResourceData() {
	        let next = getLine(transferEncoding);
	        let indexEndData, boundaryFound;
	        while (!boundaryFound && indexMhtml < mhtml.length - 1) {
	            indexEndData = indexMhtml;
	            const indexBoundary = indexOf(next, boundary);
	            if (indexBoundary !== -1) {
	                indexEndData = indexEndData - next.length + indexBoundary - 2;
	                if (indexBoundary > 2) {
	                    next = next.slice(0, indexBoundary - 2);
	                } else {
	                    next = [];
	                }
	                boundaryFound = true;
	            }
	            if (resource.transferEncoding === QUOTED_PRINTABLE_ENCODING) {
	                if (resource.data.length > 2 && resource.data[resource.data.length - 3] === 0x3D && endsWithCRLF(next)) {
	                    resource.data.splice(resource.data.length - 3, 3);
	                } else if (resource.data.length > 1 && resource.data[resource.data.length - 2] === 0x3D && endsWithLF(next)) {
	                    resource.data.splice(resource.data.length - 2, 2);
	                }
	            } else if (resource.transferEncoding === BASE64_ENCODING) {
	                if (endsWithCRLF(next)) {
	                    next = next.slice(0, next.length - 2);
	                } else if (endsWithLF(next)) {
	                    next = next.slice(0, next.length - 1);
	                }
	            }
	            resource.data.splice(resource.data.length, 0, ...next);
	            if (!boundaryFound) {
	                next = getLine(transferEncoding);
	            }
	        }
	        if (!boundaryFound && boundary) {
	            indexEndData = indexMhtml;
	        }
	        return indexEndData;
	    }

	    function convertEmbeddedMhtml(indexEnd) {
	        const context = { resources, frames };
	        if (endsWithCRLF(mhtml)) {
	            indexEnd -= 2;
	        } else if (endsWithLF(mhtml)) {
	            indexEnd--;
	        }
	        parse$1(mhtml.slice(indexStartEmbeddedMhtml, indexEnd), { DOMParser }, context);
	        return context.index;
	    }

	    function processResource() {
	        resource.data = resource.rawData = new Uint8Array(resource.data);
	        const charset = resource.contentType ? getCharset(resource.contentType) : undefined;
	        if (resource.transferEncoding === BINARY_ENCODING && (!resource.contentType || !isText(resource.contentType))) {
	            resource.transferEncoding = BASE64_ENCODING;
	            resource.data = decodeBinary(resource.data);
	        } else {
	            resource.data = decodeString(resource.data, charset);
	        }
	        if (resource.contentType) {
	            resource.contentType = replaceCharset(resource.contentType, UTF8_CHARSET);
	            if (isStylesheet(resource.contentType)) {
	                processStylesheetCharset(charset);
	            } else if (isDocument(resource.contentType)) {
	                processDocumentCharset(charset);
	            }
	        }
	        delete resource.rawData;
	    }

	    function processStylesheetCharset(charset) {
	        try {
	            let ast = Zb(resource.data);
	            if (ast.children.first && ast.children.first.type === AT_RULE && ast.children.first.name.toLowerCase() === CHARSET_IDENTIFIER) {
	                const charsetNode = ast.children.first;
	                const cssCharset = charsetNode.prelude.children.first.value.toLowerCase();
	                if (cssCharset !== UTF8_CHARSET && cssCharset !== charset) {
	                    resource.data = decodeString(resource.rawData, cssCharset);
	                    ast = Zb(resource.data);
	                }
	                ast.children.remove(ast.children.head);
	                resource.data = Jb(ast);
	            }
	            // eslint-disable-next-line no-unused-vars
	        } catch (_) {
	            // ignored
	        }
	    }

	    function processDocumentCharset(charset) {
	        const contentType = resource.contentType.split(";")[0];
	        let dom = parseDOM(resource.data, contentType, DOMParser);
	        let charserMetaElement = getMetaCharsetElement(dom.document.documentElement);
	        if (charserMetaElement) {
	            let htmlCharset = charserMetaElement.getAttribute(CHARSET_ATTRIBUTE);
	            if (htmlCharset) {
	                htmlCharset = htmlCharset.toLowerCase();
	                if (htmlCharset !== UTF8_CHARSET && htmlCharset !== charset) {
	                    resource.data = decodeString(resource.rawData, charset);
	                    dom = parseDOM(resource.data, contentType, DOMParser);
	                    charserMetaElement = getMetaCharsetElement(dom.document.documentElement);
	                }
	            }
	            if (charserMetaElement) {
	                charserMetaElement.remove();
	            }
	            resource.data = dom.serialize();
	        }
	        let metaElement = getMetaContentTypeElement(dom.document);
	        if (metaElement) {
	            const contentType = metaElement.getAttribute(CONTENT_ATTRIBUTE);
	            const htmlCharset = getCharset(contentType);
	            if (htmlCharset && htmlCharset !== UTF8_CHARSET && htmlCharset !== charset) {
	                resource.data = decodeString(resource.rawData, htmlCharset);
	                dom = parseDOM(resource.data, contentType, DOMParser);
	                metaElement = getMetaContentTypeElement(dom.document.documentElement);
	            }
	            if (metaElement) {
	                metaElement.remove();
	            }
	            resource.data = dom.serialize();
	        }
	    }
	}

	function getMetaCharsetElement(document) {
	    const metaElements = document.getElementsByTagName(META_TAG);
	    return Array.from(metaElements).find(metaElement => metaElement.getAttribute(CHARSET_ATTRIBUTE));
	}

	function getMetaContentTypeElement(document) {
	    const metaElements = document.getElementsByTagName(META_TAG);
	    return Array.from(metaElements).find(metaElement => metaElement.getAttribute(HTTP_EQUIV_ATTRIBUTE)
	        && metaElement.getAttribute(HTTP_EQUIV_ATTRIBUTE).toLowerCase() === CONTENT_TYPE_HEADER.toLowerCase());
	}

	/// <reference types="./mod.d.ts" />


	function convert(mhtml, config = {}) {
	    if (config.DOMParser === undefined && globalThis.DOMParser) {
	        config.DOMParser = globalThis.DOMParser;
	    }
	    if ((typeof mhtml === "string") || mhtml instanceof Uint8Array) {
	        mhtml = parse(mhtml, config);
	    }
	    return fetchAndConvert(mhtml, config);
	}

	function parse(data, config = {}) {
	    if (config.DOMParser === undefined && globalThis.DOMParser) {
	        config.DOMParser = globalThis.DOMParser;
	    }
	    return parse$1(data, config);
	}

	/*
	 * Copyright 2010-2020 Gildas Lormeau
	 * contact : gildas.lormeau <at> gmail.com
	 * 
	 * This file is part of SingleFile.
	 *
	 *   The code in this file is free software: you can redistribute it and/or 
	 *   modify it under the terms of the GNU Affero General Public License 
	 *   (GNU AGPL) as published by the Free Software Foundation, either version 3
	 *   of the License, or (at your option) any later version.
	 * 
	 *   The code in this file is distributed in the hope that it will be useful, 
	 *   but WITHOUT ANY WARRANTY; without even the implied warranty of 
	 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero 
	 *   General Public License for more details.
	 *
	 *   As additional permission under GNU AGPL version 3 section 7, you may 
	 *   distribute UNMODIFIED VERSIONS OF THIS file without the copy of the GNU 
	 *   AGPL normally required by section 4, provided you include this license 
	 *   notice and a URL through which recipients can access the Corresponding 
	 *   Source.
	 */


	(globalThis => {

		const IS_NOT_SAFARI = !/Safari/.test(navigator.userAgent) || /Chrome/.test(navigator.userAgent) || /Vivaldi/.test(navigator.userAgent) || /OPR/.test(navigator.userAgent);

		const singlefile = globalThis.singlefile;

		const FORBIDDEN_TAG_NAMES = ["a", "area", "audio", "base", "br", "col", "command", "embed", "hr", "img", "iframe", "input", "keygen", "link", "meta", "param", "source", "track", "video", "wbr"];
		const BUTTON_ANCHOR_URL = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgAgMAAAAOFJJnAAABhGlDQ1BJQ0MgcHJvZmlsZQAAKJF9kT1Iw0AcxV9TtaIVETuIOASsThZERRylikWwUNoKrTqYXPohNGlIUlwcBdeCgx+LVQcXZ10dXAVB8APEydFJ0UVK/F9SaBHjwXE/3t173L0DhFqJqWbbOKBqlpGMRcVMdkUMvKIbfQCG0SExU4+nFtLwHF/38PH1LsKzvM/9OXqUnMkAn0g8y3TDIl4nnt60dM77xCFWlBTic+Ixgy5I/Mh12eU3zgWHBZ4ZMtLJOeIQsVhoYbmFWdFQiaeIw4qqUb6QcVnhvMVZLVVY4578hcGctpziOs0hxLCIOBIQIaOCDZRgIUKrRoqJJO1HPfyDjj9BLplcG2DkmEcZKiTHD/4Hv7s185MTblIwCrS/2PbHCBDYBepV2/4+tu36CeB/Bq60pr9cA2Y+Sa82tfAR0LsNXFw3NXkPuNwBBp50yZAcyU9TyOeB9zP6pizQfwt0rbq9NfZx+gCkqaulG+DgEBgtUPaax7s7W3v790yjvx825XKP2aKCdAAAAAlwSFlzAAAuIwAALiMBeKU/dgAAAAd0SU1FB+QLEQA4M3Y7LzIAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAACVBMVEUAAAAAAACKioqjwG1pAAAAAXRSTlMAQObYZgAAAAFiS0dEAmYLfGQAAABkSURBVBjThc47CsNADIThWfD0bnSfbdIroP/+V0mhsN5gTNToK0YPaSvnF9B9wGykG54j/2GF1/hauE4E1AOuNxrBdA5KUXIqdiCnqC1zIZ2mFJQzKJ3wesOhcwDM4+fo7cOuD9C4HTQ9HAAQAAAAAElFTkSuQmCC";
		const BUTTON_CLOSE_URL = "data:image/png;base64,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";
		const SHADOWROOT_ATTRIBUTE_NAME = "shadowrootmode";
		const SCRIPT_TEMPLATE_SHADOW_ROOT = "data-template-shadow-root";
		const SCRIPT_OPTIONS = "data-single-file-options";
		const NOTE_TAGNAME = "single-file-note";
		const NOTE_CLASS = "note";
		const NOTE_MASK_CLASS = "note-mask";
		const NOTE_HIDDEN_CLASS = "note-hidden";
		const NOTE_ANCHORED_CLASS = "note-anchored";
		const NOTE_SELECTED_CLASS = "note-selected";
		const NOTE_MOVING_CLASS = "note-moving";
		const NOTE_MASK_MOVING_CLASS = "note-mask-moving";
		const PAGE_MASK_CLASS = "page-mask";
		const MASK_CLASS = "single-file-mask";
		const PAGE_MASK_CONTAINER_CLASS = "single-file-page-mask";
		const HIGHLIGHT_CLASS = "single-file-highlight";
		const HIGHLIGHTS_STYLESHEET_CLASS = "single-file-highlights-stylesheet";
		const REMOVED_CONTENT_CLASS = "single-file-removed";
		const HIGHLIGHT_HIDDEN_CLASS = "single-file-highlight-hidden";
		const PAGE_MASK_ACTIVE_CLASS = "page-mask-active";
		const CUT_HOVER_CLASS = "single-file-cut-hover";
		const CUT_OUTER_HOVER_CLASS = "single-file-cut-outer-hover";
		const CUT_SELECTED_CLASS = "single-file-cut-selected";
		const CUT_OUTER_SELECTED_CLASS = "single-file-cut-outer-selected";
		const CUT_MODE_CLASS = "single-file-cut-mode";
		const NOTE_INITIAL_POSITION_X = 20;
		const NOTE_INITIAL_POSITION_Y = 20;
		const NOTE_INITIAL_WIDTH = 150;
		const NOTE_INITIAL_HEIGHT = 150;
		const NOTE_HEADER_HEIGHT = 25;
		const DISABLED_NOSCRIPT_ATTRIBUTE_NAME = "data-single-file-disabled-noscript";
		const COMMENT_HEADER = "Page saved with SingleFile";
		const COMMENT_HEADER_LEGACY = "Archive processed by SingleFile";

		let NOTES_WEB_STYLESHEET, MASK_WEB_STYLESHEET, HIGHLIGHTS_WEB_STYLESHEET;
		let selectedNote, anchorElement, maskNoteElement, maskPageElement, highlightSelectionMode, removeHighlightMode, resizingNoteMode, movingNoteMode, highlightColor, collapseNoteTimeout, cuttingOuterMode, cuttingMode, cuttingTouchTarget, cuttingPath, cuttingPathIndex, previousContent;
		let removedElements = [], removedElementIndex = 0, pageResources, pageUrl, pageCompressContent, includeInfobar, openInfobar, infobarPositionAbsolute, infobarPositionTop, infobarPositionBottom, infobarPositionLeft, infobarPositionRight;

		globalThis.zip = singlefile.helper.zip;
		initEventListeners();
		new MutationObserver(initEventListeners).observe(document, { childList: true });

		function initEventListeners() {
			window.onmessage = async event => {
				const message = JSON.parse(event.data);
				if (message.method == "init") {
					await init(message);
				}
				if (message.method == "addNote") {
					addNote(message);
				}
				if (message.method == "displayNotes") {
					document.querySelectorAll(NOTE_TAGNAME).forEach(noteElement => noteElement.shadowRoot.querySelector("." + NOTE_CLASS).classList.remove(NOTE_HIDDEN_CLASS));
				}
				if (message.method == "hideNotes") {
					document.querySelectorAll(NOTE_TAGNAME).forEach(noteElement => noteElement.shadowRoot.querySelector("." + NOTE_CLASS).classList.add(NOTE_HIDDEN_CLASS));
				}
				if (message.method == "enableHighlight") {
					if (highlightColor) {
						document.documentElement.classList.remove(highlightColor + "-mode");
					}
					highlightColor = message.color;
					highlightSelectionMode = true;
					document.documentElement.classList.add(message.color + "-mode");
				}
				if (message.method == "disableHighlight") {
					disableHighlight();
					highlightSelectionMode = false;
				}
				if (message.method == "displayHighlights") {
					document.querySelectorAll("." + HIGHLIGHT_CLASS).forEach(noteElement => noteElement.classList.remove(HIGHLIGHT_HIDDEN_CLASS));
				}
				if (message.method == "hideHighlights") {
					document.querySelectorAll("." + HIGHLIGHT_CLASS).forEach(noteElement => noteElement.classList.add(HIGHLIGHT_HIDDEN_CLASS));
				}
				if (message.method == "enableRemoveHighlights") {
					removeHighlightMode = true;
					document.documentElement.classList.add("single-file-remove-highlights-mode");
				}
				if (message.method == "disableRemoveHighlights") {
					removeHighlightMode = false;
					document.documentElement.classList.remove("single-file-remove-highlights-mode");
				}
				if (message.method == "enableEditPage") {
					document.body.contentEditable = true;
					onUpdate(false);
				}
				if (message.method == "formatPage") {
					formatPage(!message.applySystemTheme, message.contentWidth);
				}
				if (message.method == "cancelFormatPage") {
					cancelFormatPage();
				}
				if (message.method == "disableEditPage") {
					document.body.contentEditable = false;
				}
				if (message.method == "enableCutInnerPage") {
					cuttingMode = true;
					document.documentElement.classList.add(CUT_MODE_CLASS);
				}
				if (message.method == "enableCutOuterPage") {
					cuttingOuterMode = true;
					document.documentElement.classList.add(CUT_MODE_CLASS);
				}
				if (message.method == "disableCutInnerPage" || message.method == "disableCutOuterPage") {
					if (message.method == "disableCutInnerPage") {
						cuttingMode = false;
					} else {
						cuttingOuterMode = false;
					}
					document.documentElement.classList.remove(CUT_MODE_CLASS);
					resetSelectedElements();
					if (cuttingPath) {
						unhighlightCutElement();
						cuttingPath = null;
					}
				}
				if (message.method == "undoCutPage") {
					undoCutPage();
				}
				if (message.method == "undoAllCutPage") {
					while (removedElementIndex) {
						removedElements[removedElementIndex - 1].forEach(element => element.classList.remove(REMOVED_CONTENT_CLASS));
						removedElementIndex--;
					}
				}
				if (message.method == "redoCutPage") {
					redoCutPage();
				}
				if (message.method == "getContent") {
					onUpdate(true);
					includeInfobar = message.includeInfobar;
					openInfobar = message.openInfobar;
					infobarPositionAbsolute = message.infobarPositionAbsolute;
					infobarPositionTop = message.infobarPositionTop;
					infobarPositionBottom = message.infobarPositionBottom;
					infobarPositionLeft = message.infobarPositionLeft;
					infobarPositionRight = message.infobarPositionRight;
					let content = getContent(message.compressHTML);
					let filename;
					const pageOptions = loadOptionsFromPage(document);
					if (pageOptions) {
						pageOptions.backgroundSave = message.backgroundSave;
						pageOptions.saveDate = new Date(pageOptions.saveDate);
						pageOptions.visitDate = new Date(pageOptions.visitDate);
						filename = await singlefile.helper.formatFilename(content, document, pageOptions);
					}
					if (message.sharePage) {
						setLabels(message.labels);
					}
					if (pageCompressContent) {
						const viewport = document.head.querySelector("meta[name=viewport]");
						window.parent.postMessage(JSON.stringify({
							method: "setContent",
							content,
							filename,
							title: document.title,
							doctype: singlefile.helper.getDoctypeString(document),
							url: pageUrl,
							viewport: viewport ? viewport.content : null,
							compressContent: true,
							foregroundSave: message.foregroundSave,
							sharePage: message.sharePage,
							documentHeight: document.documentElement.offsetHeight
						}), "*");
					} else {
						if (message.foregroundSave || message.sharePage) {
							try {
								await downloadPageForeground({
									content,
									filename: filename || message.filename,
									mimeType: "text/html"
								}, { sharePage: message.sharePage });
							} catch (error) {
								console.log(error); // eslint-disable-line no-console
								window.parent.postMessage(JSON.stringify({ method: "onError", error: error.message }), "*");
							}
						} else {
							window.parent.postMessage(JSON.stringify({
								method: "setContent",
								content,
								filename,
								title: document.title,
								url: pageUrl
							}), "*");
						}
					}
				}
				if (message.method == "printPage") {
					printPage();
				}
				if (message.method == "importMht") {
					let { content, filename } = message;
					const { data } = await convert(content, { DOMParser: globalThis.DOMParser });
					content = data;
					await init({ content }, { filename, reset: true, isMHTML: true });
				}
				if (message.method == "displayInfobar") {
					singlefile.helper.displayIcon(document, true, {
						openInfobar: message.openInfobar,
						infobarPositionAbsolute: message.infobarPositionAbsolute,
						infobarPositionTop: message.infobarPositionTop,
						infobarPositionBottom: message.infobarPositionBottom,
						infobarPositionLeft: message.infobarPositionLeft,
						infobarPositionRight: message.infobarPositionRight
					});
					const infobarDoc = document.implementation.createHTMLDocument();
					infobarDoc.body.appendChild(document.querySelector(singlefile.helper.INFOBAR_TAGNAME));
					serializeShadowRoots(infobarDoc.body);
					const content = singlefile.helper.serialize(infobarDoc, true);
					window.parent.postMessage(JSON.stringify({
						method: "displayInfobar",
						content
					}), "*");
				}
				if (message.method == "download") {
					try {
						await downloadPageForeground({
							content: message.content,
							filename: message.filename,
							mimeType: message.mimeType
						}, { sharePage: message.sharePage });
					} catch (error) {
						console.log(error); // eslint-disable-line no-console
						window.parent.postMessage(JSON.stringify({ method: "onError", error: error.message }), "*");
					}
				}
			};
			window.onresize = reflowNotes;
			document.ondragover = event => event.preventDefault();
			document.ondrop = async event => {
				if (event.dataTransfer.files && event.dataTransfer.files[0]) {
					const file = event.dataTransfer.files[0];
					event.preventDefault();
					let content = new TextDecoder().decode(await file.arrayBuffer());
					const compressContent = /<html[^>]* data-sfz[^>]*>/i.test(content);
					if (compressContent) {
						await init({ content: file, compressContent }, { filename: file.name });
					} else {
						const isMHTML = /\.mhtml?$|\.mht$/i.test(file.name);
						let filename = file.name || "Untitled.html";
						filename = filename.replace(/(\.mhtml|\.mht)$/i, ".html");
						if (!filename.endsWith(".html")) {
							filename += ".html";
						}
						if (isMHTML) {
							const { data } = await convert(content, { DOMParser: globalThis.DOMParser });
							content = data;
						}
						await init({ content }, { filename, isMHTML });
					}
				}
			};
		}

		async function init({ content, password, compressContent }, { filename, reset, isMHTML } = {}) {
			await initConstants();
			if (compressContent) {
				const zipOptions = {
					workerScripts: { inflate: ["/lib/single-file-z-worker.js"] }
				};
				try {
					const worker = new Worker(zipOptions.workerScripts.inflate[0]);
					worker.terminate();
					// eslint-disable-next-line no-unused-vars
				} catch (error) {
					delete zipOptions.workerScripts;
				}
				zipOptions.useWebWorkers = IS_NOT_SAFARI;
				const { docContent, origDocContent, resources, url } = await singlefile.helper.extract(content, {
					password,
					prompt,
					zipOptions
				});
				pageResources = resources;
				pageUrl = url;
				pageCompressContent = true;
				const contentDocument = (new DOMParser()).parseFromString(docContent, "text/html");
				if (detectSavedPage(contentDocument)) {
					const { saveUrl } = singlefile.helper.extractInfobarData(contentDocument);
					pageUrl = saveUrl;
					await singlefile.helper.display(document, docContent, { disableFramePointerEvents: true });
					singlefile.helper.fixInvalidNesting(document);
					const infobarElement = document.querySelector(singlefile.helper.INFOBAR_TAGNAME);
					if (infobarElement) {
						infobarElement.remove();
					}
					await initPage();
					let icon;
					const origContentDocument = (new DOMParser()).parseFromString(origDocContent, "text/html");
					const iconElement = origContentDocument.querySelector("link[rel*=icon]");
					if (iconElement) {
						const iconResource = resources.find(resource => resource.filename == iconElement.getAttribute("href"));
						if (iconResource && iconResource.content) {
							const reader = new FileReader();
							reader.readAsDataURL(await (await fetch(iconResource.content)).blob());
							icon = await new Promise((resolve, reject) => {
								reader.addEventListener("load", () => resolve(reader.result), false);
								reader.addEventListener("error", reject, false);
							});
						} else {
							icon = iconElement.href;
						}
					}
					window.parent.postMessage(JSON.stringify({
						method: "onInit",
						title: document.title,
						icon,
						filename,
						reset,
						formatPageEnabled: isProbablyReaderable(document)
					}), "*");
				}
			} else {
				const contentDocument = (new DOMParser()).parseFromString(content, "text/html");
				if (detectSavedPage(contentDocument) || isMHTML) {
					if (!isMHTML) {
						const { saveUrl } = singlefile.helper.extractInfobarData(contentDocument);
						pageUrl = saveUrl;
					}
					if (contentDocument.doctype) {
						if (document.doctype) {
							document.replaceChild(contentDocument.doctype, document.doctype);
						} else {
							document.insertBefore(contentDocument.doctype, document.documentElement);
						}
					} else if (document.doctype) {
						document.doctype.remove();
					}
					const infobarElement = contentDocument.querySelector(singlefile.helper.INFOBAR_TAGNAME);
					if (infobarElement) {
						infobarElement.remove();
					}
					contentDocument.querySelectorAll("noscript").forEach(element => {
						element.setAttribute(DISABLED_NOSCRIPT_ATTRIBUTE_NAME, element.innerHTML);
						element.textContent = "";
					});
					contentDocument.querySelectorAll("iframe").forEach(element => {
						const pointerEvents = "pointer-events";
						element.style.setProperty("-sf-" + pointerEvents, element.style.getPropertyValue(pointerEvents), element.style.getPropertyPriority(pointerEvents));
						element.style.setProperty(pointerEvents, "none", "important");
					});
					document.replaceChild(contentDocument.documentElement, document.documentElement);
					singlefile.helper.fixInvalidNesting(document);
					document.querySelectorAll("[data-single-file-note-refs]").forEach(noteRefElement => noteRefElement.dataset.singleFileNoteRefs = noteRefElement.dataset.singleFileNoteRefs.replace(/,/g, " "));
					deserializeShadowRoots(document);
					document.querySelectorAll(NOTE_TAGNAME).forEach(containerElement => attachNoteListeners(containerElement, true));
					insertHighlightStylesheet(document);
					maskPageElement = getMaskElement(PAGE_MASK_CLASS, PAGE_MASK_CONTAINER_CLASS);
					maskNoteElement = getMaskElement(NOTE_MASK_CLASS);
					document.documentElement.onmousedown = onMouseDown;
					document.documentElement.onmouseup = document.documentElement.ontouchend = onMouseUp;
					document.documentElement.onmouseover = onMouseOver;
					document.documentElement.onmouseout = onMouseOut;
					document.documentElement.onkeydown = onKeyDown;
					document.documentElement.ontouchstart = document.documentElement.ontouchmove = onTouchMove;
					window.onclick = event => event.preventDefault();
					const iconElement = document.querySelector("link[rel*=icon]");
					window.parent.postMessage(JSON.stringify({
						method: "onInit",
						title: document.title,
						icon: iconElement && iconElement.href,
						filename,
						reset,
						formatPageEnabled: isProbablyReaderable(document)
					}), "*");
				}
			}
		}

		function loadOptionsFromPage(doc) {
			const optionsElement = doc.body.querySelector("script[type=\"application/json\"][" + SCRIPT_OPTIONS + "]");
			if (optionsElement) {
				return JSON.parse(optionsElement.textContent);
			}
		}

		async function initPage() {
			document.querySelectorAll("iframe").forEach(element => {
				const pointerEvents = "pointer-events";
				element.style.setProperty("-sf-" + pointerEvents, element.style.getPropertyValue(pointerEvents), element.style.getPropertyPriority(pointerEvents));
				element.style.setProperty(pointerEvents, "none", "important");
			});
			document.querySelectorAll("[data-single-file-note-refs]").forEach(noteRefElement => noteRefElement.dataset.singleFileNoteRefs = noteRefElement.dataset.singleFileNoteRefs.replace(/,/g, " "));
			deserializeShadowRoots(document);
			reflowNotes();
			await waitResourcesLoad();
			reflowNotes();
			document.querySelectorAll(NOTE_TAGNAME).forEach(containerElement => attachNoteListeners(containerElement, true));
			insertHighlightStylesheet(document);
			maskPageElement = getMaskElement(PAGE_MASK_CLASS, PAGE_MASK_CONTAINER_CLASS);
			maskNoteElement = getMaskElement(NOTE_MASK_CLASS);
			document.documentElement.onmousedown = onMouseDown;
			document.documentElement.onmouseup = document.documentElement.ontouchend = onMouseUp;
			document.documentElement.onmouseover = onMouseOver;
			document.documentElement.onmouseout = onMouseOut;
			document.documentElement.onkeydown = onKeyDown;
			document.documentElement.ontouchstart = document.documentElement.ontouchmove = onTouchMove;
			window.onclick = event => event.preventDefault();
		}

		async function initConstants() {
			[NOTES_WEB_STYLESHEET, MASK_WEB_STYLESHEET, HIGHLIGHTS_WEB_STYLESHEET] = await Promise.all([
				minifyText(await ((await fetch("../pages/editor-note-web.css")).text())),
				minifyText(await ((await fetch("../pages/editor-mask-web.css")).text())),
				minifyText(await ((await fetch("../pages/editor-frame-web.css")).text()))
			]);
		}

		function addNote({ color }) {
			const containerElement = document.createElement(NOTE_TAGNAME);
			const noteElement = document.createElement("div");
			const headerElement = document.createElement("header");
			const blockquoteElement = document.createElement("blockquote");
			const mainElement = document.createElement("textarea");
			const resizeElement = document.createElement("div");
			const removeNoteElement = document.createElement("img");
			const anchorIconElement = document.createElement("img");
			const noteShadow = containerElement.attachShadow({ mode: "open" });
			headerElement.appendChild(anchorIconElement);
			headerElement.appendChild(removeNoteElement);
			blockquoteElement.appendChild(mainElement);
			noteElement.appendChild(headerElement);
			noteElement.appendChild(blockquoteElement);
			noteElement.appendChild(resizeElement);
			noteShadow.appendChild(getStyleElement(NOTES_WEB_STYLESHEET));
			noteShadow.appendChild(noteElement);
			const notesElements = Array.from(document.querySelectorAll(NOTE_TAGNAME));
			const noteId = Math.max.call(Math, 0, ...notesElements.map(noteElement => Number(noteElement.dataset.noteId))) + 1;
			blockquoteElement.cite = "https://www.w3.org/TR/annotation-model/#selector(type=CssSelector,value=[data-single-file-note-refs~=\"" + noteId + "\"])";
			noteElement.classList.add(NOTE_CLASS);
			noteElement.classList.add(NOTE_ANCHORED_CLASS);
			noteElement.classList.add(color);
			noteElement.dataset.color = color;
			mainElement.dir = "auto";
			const boundingRectDocument = document.documentElement.getBoundingClientRect();
			let positionX = NOTE_INITIAL_WIDTH + NOTE_INITIAL_POSITION_X - 1 - boundingRectDocument.x;
			let positionY = NOTE_INITIAL_HEIGHT + NOTE_INITIAL_POSITION_Y - 1 - boundingRectDocument.y;
			while (Array.from(document.elementsFromPoint(positionX - window.scrollX, positionY - window.scrollY)).find(element => element.tagName.toLowerCase() == NOTE_TAGNAME)) {
				positionX += NOTE_INITIAL_POSITION_X;
				positionY += NOTE_INITIAL_POSITION_Y;
			}
			noteElement.style.setProperty("left", (positionX - NOTE_INITIAL_WIDTH - 1) + "px");
			noteElement.style.setProperty("top", (positionY - NOTE_INITIAL_HEIGHT - 1) + "px");
			resizeElement.className = "note-resize";
			resizeElement.ondragstart = event => event.preventDefault();
			removeNoteElement.className = "note-remove";
			removeNoteElement.src = BUTTON_CLOSE_URL;
			removeNoteElement.ondragstart = event => event.preventDefault();
			anchorIconElement.className = "note-anchor";
			anchorIconElement.src = BUTTON_ANCHOR_URL;
			anchorIconElement.ondragstart = event => event.preventDefault();
			containerElement.dataset.noteId = noteId;
			addNoteRef(document.documentElement, noteId);
			attachNoteListeners(containerElement, true);
			document.documentElement.insertBefore(containerElement, maskPageElement.getRootNode().host);
			noteElement.classList.add(NOTE_SELECTED_CLASS);
			selectedNote = noteElement;
			onUpdate(false);
		}

		function attachNoteListeners(containerElement, editable = false) {
			const SELECT_PX_THRESHOLD = 4;
			const COLLAPSING_NOTE_DELAY = 750;
			const noteShadow = containerElement.shadowRoot;
			const noteElement = noteShadow.childNodes[1];
			const headerElement = noteShadow.querySelector("header");
			const mainElement = noteShadow.querySelector("textarea");
			const noteId = containerElement.dataset.noteId;
			const resizeElement = noteShadow.querySelector(".note-resize");
			const anchorIconElement = noteShadow.querySelector(".note-anchor");
			const removeNoteElement = noteShadow.querySelector(".note-remove");
			mainElement.readOnly = !editable;
			if (!editable) {
				anchorIconElement.style.setProperty("display", "none", "important");
			} else {
				anchorIconElement.style.removeProperty("display");
			}
			headerElement.ontouchstart = headerElement.onmousedown = event => {
				if (event.target == headerElement) {
					collapseNoteTimeout = setTimeout(() => {
						noteElement.classList.toggle("note-collapsed");
						hideMaskNote();
					}, COLLAPSING_NOTE_DELAY);
					event.preventDefault();
					const position = getPosition(event);
					const clientX = position.clientX;
					const clientY = position.clientY;
					const boundingRect = noteElement.getBoundingClientRect();
					const deltaX = clientX - boundingRect.left;
					const deltaY = clientY - boundingRect.top;
					maskPageElement.classList.add(PAGE_MASK_ACTIVE_CLASS);
					document.documentElement.style.setProperty("user-select", "none", "important");
					anchorElement = getAnchorElement(containerElement);
					displayMaskNote();
					selectNote(noteElement);
					moveNote(event, deltaX, deltaY);
					movingNoteMode = { event, deltaX, deltaY };
					document.documentElement.ontouchmove = document.documentElement.onmousemove = event => {
						clearTimeout(collapseNoteTimeout);
						if (!movingNoteMode) {
							movingNoteMode = { deltaX, deltaY };
						}
						movingNoteMode.event = event;
						moveNote(event, deltaX, deltaY);
					};
				}
			};
			resizeElement.ontouchstart = resizeElement.onmousedown = event => {
				event.preventDefault();
				resizingNoteMode = true;
				selectNote(noteElement);
				maskPageElement.classList.add(PAGE_MASK_ACTIVE_CLASS);
				document.documentElement.style.setProperty("user-select", "none", "important");
				document.documentElement.ontouchmove = document.documentElement.onmousemove = event => {
					event.preventDefault();
					const { clientX, clientY } = getPosition(event);
					const boundingRectNote = noteElement.getBoundingClientRect();
					noteElement.style.width = clientX - boundingRectNote.left + "px";
					noteElement.style.height = clientY - boundingRectNote.top + "px";
				};
			};
			anchorIconElement.ontouchend = anchorIconElement.onclick = event => {
				event.preventDefault();
				noteElement.classList.toggle(NOTE_ANCHORED_CLASS);
				if (!noteElement.classList.contains(NOTE_ANCHORED_CLASS)) {
					deleteNoteRef(containerElement, noteId);
					addNoteRef(document.documentElement, noteId);
				}
				onUpdate(false);
			};
			removeNoteElement.ontouchend = removeNoteElement.onclick = event => {
				event.preventDefault();
				deleteNoteRef(containerElement, noteId);
				containerElement.remove();
			};
			noteElement.onmousedown = () => {
				selectNote(noteElement);
			};

			function moveNote(event, deltaX, deltaY) {
				event.preventDefault();
				const { clientX, clientY } = getPosition(event);
				noteElement.classList.add(NOTE_MOVING_CLASS);
				if (editable) {
					if (noteElement.classList.contains(NOTE_ANCHORED_CLASS)) {
						deleteNoteRef(containerElement, noteId);
						anchorElement = getTarget(clientX, clientY) || document.documentElement;
						addNoteRef(anchorElement, noteId);
					} else {
						anchorElement = document.documentElement;
					}
				}
				document.documentElement.insertBefore(containerElement, maskPageElement.getRootNode().host);
				noteElement.style.setProperty("left", (clientX - deltaX) + "px");
				noteElement.style.setProperty("top", (clientY - deltaY) + "px");
				noteElement.style.setProperty("position", "fixed");
				displayMaskNote();
			}

			function displayMaskNote() {
				if (anchorElement == document.documentElement || anchorElement == document.documentElement) {
					hideMaskNote();
				} else {
					const boundingRectAnchor = anchorElement.getBoundingClientRect();
					maskNoteElement.classList.add(NOTE_MASK_MOVING_CLASS);
					if (selectedNote) {
						maskNoteElement.classList.add(selectedNote.dataset.color);
					}
					maskNoteElement.style.setProperty("top", (boundingRectAnchor.y - 3) + "px");
					maskNoteElement.style.setProperty("left", (boundingRectAnchor.x - 3) + "px");
					maskNoteElement.style.setProperty("width", (boundingRectAnchor.width + 3) + "px");
					maskNoteElement.style.setProperty("height", (boundingRectAnchor.height + 3) + "px");
				}
			}

			function hideMaskNote() {
				maskNoteElement.classList.remove(NOTE_MASK_MOVING_CLASS);
				if (selectedNote) {
					maskNoteElement.classList.remove(selectedNote.dataset.color);
				}
			}

			function selectNote(noteElement) {
				if (selectedNote) {
					selectedNote.classList.remove(NOTE_SELECTED_CLASS);
					maskNoteElement.classList.remove(selectedNote.dataset.color);
				}
				noteElement.classList.add(NOTE_SELECTED_CLASS);
				noteElement.classList.add(noteElement.dataset.color);
				selectedNote = noteElement;
			}

			function getTarget(clientX, clientY) {
				const targets = Array.from(document.elementsFromPoint(clientX, clientY)).filter(element => element.matches("html *:not(" + NOTE_TAGNAME + "):not(." + MASK_CLASS + ")"));
				if (!targets.includes(document.documentElement)) {
					targets.push(document.documentElement);
				}
				let newTarget, target = targets[0], boundingRect = target.getBoundingClientRect();
				newTarget = determineTargetElement("floor", target, clientX - boundingRect.left, getMatchedParents(target, "left"));
				if (newTarget == target) {
					newTarget = determineTargetElement("ceil", target, boundingRect.left + boundingRect.width - clientX, getMatchedParents(target, "right"));
				}
				if (newTarget == target) {
					newTarget = determineTargetElement("floor", target, clientY - boundingRect.top, getMatchedParents(target, "top"));
				}
				if (newTarget == target) {
					newTarget = determineTargetElement("ceil", target, boundingRect.top + boundingRect.height - clientY, getMatchedParents(target, "bottom"));
				}
				target = newTarget;
				while (boundingRect = target && target.getBoundingClientRect(), boundingRect && boundingRect.width <= SELECT_PX_THRESHOLD && boundingRect.height <= SELECT_PX_THRESHOLD) {
					target = target.parentElement;
				}
				return target;
			}

			function getMatchedParents(target, property) {
				let element = target, matchedParent, parents = [];
				do {
					const boundingRect = element.getBoundingClientRect();
					if (element.parentElement && !element.parentElement.tagName.toLowerCase() != NOTE_TAGNAME && !element.classList.contains(MASK_CLASS)) {
						const parentBoundingRect = element.parentElement.getBoundingClientRect();
						matchedParent = Math.abs(parentBoundingRect[property] - boundingRect[property]) <= SELECT_PX_THRESHOLD;
						if (matchedParent) {
							if (element.parentElement.clientWidth > SELECT_PX_THRESHOLD && element.parentElement.clientHeight > SELECT_PX_THRESHOLD &&
								((element.parentElement.clientWidth - element.clientWidth > SELECT_PX_THRESHOLD) || (element.parentElement.clientHeight - element.clientHeight > SELECT_PX_THRESHOLD))) {
								parents.push(element.parentElement);
							}
							element = element.parentElement;
						}
					} else {
						matchedParent = false;
					}
				} while (matchedParent && element);
				return parents;
			}

			function determineTargetElement(roundingMethod, target, widthDistance, parents) {
				if (Math[roundingMethod](widthDistance / SELECT_PX_THRESHOLD) <= parents.length) {
					target = parents[parents.length - Math[roundingMethod](widthDistance / SELECT_PX_THRESHOLD) - 1];
				}
				return target;
			}
		}

		function onMouseDown(event) {
			if ((cuttingMode || cuttingOuterMode) && cuttingPath) {
				event.preventDefault();
			}
		}

		function onMouseUp(event) {
			if (highlightSelectionMode) {
				event.preventDefault();
				highlightSelection();
				onUpdate(false);
			}
			if (removeHighlightMode) {
				event.preventDefault();
				let element = event.target, done;
				while (element && !done) {
					if (element.classList.contains(HIGHLIGHT_CLASS)) {
						document.querySelectorAll("." + HIGHLIGHT_CLASS + "[data-singlefile-highlight-id=" + JSON.stringify(element.dataset.singlefileHighlightId) + "]").forEach(highlightedElement => {
							resetHighlightedElement(highlightedElement);
							onUpdate(false);
						});
						done = true;
					}
					element = element.parentElement;
				}
			}
			if (resizingNoteMode) {
				event.preventDefault();
				resizingNoteMode = false;
				document.documentElement.style.removeProperty("user-select");
				maskPageElement.classList.remove(PAGE_MASK_ACTIVE_CLASS);
				document.documentElement.ontouchmove = onTouchMove;
				document.documentElement.onmousemove = null;
				onUpdate(false);
			}
			if (movingNoteMode) {
				event.preventDefault();
				anchorNote(movingNoteMode.event || event, selectedNote, movingNoteMode.deltaX, movingNoteMode.deltaY);
				movingNoteMode = null;
				document.documentElement.ontouchmove = onTouchMove;
				document.documentElement.onmousemove = null;
				onUpdate(false);
			}
			if ((cuttingMode || cuttingOuterMode) && cuttingPath) {
				event.preventDefault();
				if (event.ctrlKey) {
					const element = cuttingPath[cuttingPathIndex];
					element.classList.toggle(cuttingMode ? CUT_SELECTED_CLASS : CUT_OUTER_SELECTED_CLASS);
				} else {
					validateCutElement(event.shiftKey);
				}
			}
			if (collapseNoteTimeout) {
				clearTimeout(collapseNoteTimeout);
				collapseNoteTimeout = null;
			}
		}

		function onMouseOver(event) {
			if (cuttingMode || cuttingOuterMode) {
				const target = event.target;
				if (target.classList) {
					let ancestorFound;
					document.querySelectorAll("." + (cuttingMode ? CUT_SELECTED_CLASS : CUT_OUTER_SELECTED_CLASS)).forEach(element => {
						if (element == target || isAncestor(element, target) || isAncestor(target, element)) {
							ancestorFound = element;
						}
					});
					if (ancestorFound) {
						cuttingPath = [ancestorFound];
					} else {
						cuttingPath = getParents(event.target);
					}
					cuttingPathIndex = 0;
					highlightCutElement();
				}
			}
		}

		function onMouseOut() {
			if (cuttingMode || cuttingOuterMode) {
				if (cuttingPath) {
					unhighlightCutElement();
					cuttingPath = null;
				}
			}
		}

		function onTouchMove(event) {
			if (cuttingMode || cuttingOuterMode) {
				event.preventDefault();
				const { clientX, clientY } = getPosition(event);
				const target = document.elementFromPoint(clientX, clientY);
				if (cuttingTouchTarget != target) {
					onMouseOut();
					if (target) {
						cuttingTouchTarget = target;
						onMouseOver({ target });
					}
				}
			}
		}

		function onKeyDown(event) {
			if (cuttingMode || cuttingOuterMode) {
				if (event.code == "Tab") {
					if (cuttingPath) {
						const delta = event.shiftKey ? -1 : 1;
						let element = cuttingPath[cuttingPathIndex];
						let nextElement = cuttingPath[cuttingPathIndex + delta];
						if (nextElement) {
							let pathIndex = cuttingPathIndex + delta;
							while (
								nextElement &&
								(
									(delta == 1 &&
										element.getBoundingClientRect().width >= nextElement.getBoundingClientRect().width &&
										element.getBoundingClientRect().height >= nextElement.getBoundingClientRect().height) ||
									(delta == -1 &&
										element.getBoundingClientRect().width <= nextElement.getBoundingClientRect().width &&
										element.getBoundingClientRect().height <= nextElement.getBoundingClientRect().height))) {
								pathIndex += delta;
								nextElement = cuttingPath[pathIndex];
							}
							if (nextElement && nextElement.classList && nextElement != document.body && nextElement != document.documentElement) {
								unhighlightCutElement();
								cuttingPathIndex = pathIndex;
								highlightCutElement();
							}
						}
					}
					event.preventDefault();
				}
				if (event.code == "Space") {
					if (cuttingPath) {
						if (event.ctrlKey) {
							const element = cuttingPath[cuttingPathIndex];
							element.classList.add(cuttingMode ? CUT_SELECTED_CLASS : CUT_OUTER_SELECTED_CLASS);
						} else {
							validateCutElement(event.shiftKey);
						}
						event.preventDefault();
					}
				}
				if (event.code == "Escape") {
					resetSelectedElements();
					event.preventDefault();
				}
				if (event.key.toLowerCase() == "z" && event.ctrlKey) {
					if (event.shiftKey) {
						redoCutPage();
					} else {
						undoCutPage();
					}
					event.preventDefault();
				}
			}
			if (event.key.toLowerCase() == "s" && event.ctrlKey) {
				window.parent.postMessage(JSON.stringify({ "method": "savePage" }), "*");
				event.preventDefault();
			}
			if (event.key.toLowerCase() == "p" && event.ctrlKey) {
				printPage();
				event.preventDefault();
			}
		}

		function printPage() {
			unhighlightCutElement();
			resetSelectedElements();
			window.print();
		}

		function highlightCutElement() {
			const element = cuttingPath[cuttingPathIndex];
			element.classList.add(cuttingMode ? CUT_HOVER_CLASS : CUT_OUTER_HOVER_CLASS);
		}

		function unhighlightCutElement() {
			if (cuttingPath) {
				const element = cuttingPath[cuttingPathIndex];
				element.classList.remove(CUT_HOVER_CLASS);
				element.classList.remove(CUT_OUTER_HOVER_CLASS);
			}
		}

		function disableHighlight(doc = document) {
			if (highlightColor) {
				doc.documentElement.classList.remove(highlightColor + "-mode");
			}
		}

		function undoCutPage() {
			if (removedElementIndex) {
				removedElements[removedElementIndex - 1].forEach(element => element.classList.remove(REMOVED_CONTENT_CLASS));
				removedElementIndex--;
			}
		}

		function redoCutPage() {
			if (removedElementIndex < removedElements.length) {
				removedElements[removedElementIndex].forEach(element => element.classList.add(REMOVED_CONTENT_CLASS));
				removedElementIndex++;
			}
		}

		function validateCutElement(invert) {
			const selectedElement = cuttingPath[cuttingPathIndex];
			if ((cuttingMode && !invert) || (cuttingOuterMode && invert)) {
				if (document.documentElement != selectedElement && selectedElement.tagName.toLowerCase() != NOTE_TAGNAME) {
					const elementsRemoved = [selectedElement].concat(...document.querySelectorAll("." + CUT_SELECTED_CLASS + ",." + CUT_SELECTED_CLASS + " *,." + CUT_HOVER_CLASS + " *"));
					resetSelectedElements();
					if (elementsRemoved.length) {
						elementsRemoved.forEach(element => {
							unhighlightCutElement();
							if (element.tagName.toLowerCase() == NOTE_TAGNAME) {
								resetAnchorNote(element);
							} else {
								element.classList.add(REMOVED_CONTENT_CLASS);
							}
						});
						removedElements[removedElementIndex] = elementsRemoved;
						removedElementIndex++;
						removedElements.length = removedElementIndex;
						onUpdate(false);
					}
				}
			} else {
				if (document.documentElement != selectedElement && selectedElement.tagName.toLowerCase() != NOTE_TAGNAME) {
					const elements = [];
					const searchSelector = "*:not(style):not(meta):not(." + REMOVED_CONTENT_CLASS + ")";
					const elementsKept = [selectedElement].concat(...document.querySelectorAll("." + CUT_OUTER_SELECTED_CLASS));
					document.body.querySelectorAll(searchSelector).forEach(element => {
						let removed = true;
						elementsKept.forEach(elementKept => removed = removed && (elementKept != element && !isAncestor(elementKept, element) && !isAncestor(element, elementKept)));
						if (removed) {
							if (element.tagName.toLowerCase() == NOTE_TAGNAME) {
								resetAnchorNote(element);
							} else {
								elements.push(element);
							}
						}
					});
					elementsKept.forEach(elementKept => {
						unhighlightCutElement();
						const elementKeptRect = elementKept.getBoundingClientRect();
						elementKept.querySelectorAll(searchSelector).forEach(descendant => {
							const descendantRect = descendant.getBoundingClientRect();
							if (descendantRect.width && descendantRect.height && (
								descendantRect.left + descendantRect.width < elementKeptRect.left ||
								descendantRect.right > elementKeptRect.right + elementKeptRect.width ||
								descendantRect.top + descendantRect.height < elementKeptRect.top ||
								descendantRect.bottom > elementKeptRect.bottom + elementKeptRect.height
							)) {
								elements.push(descendant);
							}
						});
					});
					resetSelectedElements();
					if (elements.length) {
						elements.forEach(element => element.classList.add(REMOVED_CONTENT_CLASS));
						removedElements[removedElementIndex] = elements;
						removedElementIndex++;
						removedElements.length = removedElementIndex;
						onUpdate(false);
					}
				}
			}
		}

		function resetSelectedElements(doc = document) {
			doc.querySelectorAll("." + CUT_OUTER_SELECTED_CLASS + ",." + CUT_SELECTED_CLASS).forEach(element => {
				element.classList.remove(CUT_OUTER_SELECTED_CLASS);
				element.classList.remove(CUT_SELECTED_CLASS);
			});
		}

		function anchorNote(event, noteElement, deltaX, deltaY) {
			event.preventDefault();
			const { clientX, clientY } = getPosition(event);
			document.documentElement.style.removeProperty("user-select");
			noteElement.classList.remove(NOTE_MOVING_CLASS);
			maskNoteElement.classList.remove(NOTE_MASK_MOVING_CLASS);
			maskPageElement.classList.remove(PAGE_MASK_ACTIVE_CLASS);
			maskNoteElement.classList.remove(noteElement.dataset.color);
			const headerElement = noteElement.querySelector("header");
			headerElement.ontouchmove = document.documentElement.onmousemove = null;
			let currentElement = anchorElement;
			let positionedElement;
			while (currentElement.parentElement && !positionedElement) {
				if (!FORBIDDEN_TAG_NAMES.includes(currentElement.tagName.toLowerCase())) {
					const currentElementStyle = getComputedStyle(currentElement);
					if (currentElementStyle.position != "static") {
						positionedElement = currentElement;
					}
				}
				currentElement = currentElement.parentElement;
			}
			if (!positionedElement) {
				positionedElement = document.documentElement;
			}
			const containerElement = noteElement.getRootNode().host;
			if (positionedElement == document.documentElement) {
				const firstMaskElement = document.querySelector("." + MASK_CLASS);
				firstMaskElement.parentElement.insertBefore(containerElement, firstMaskElement);
			} else {
				positionedElement.appendChild(containerElement);
			}
			const boundingRectPositionedElement = positionedElement.getBoundingClientRect();
			const stylePositionedElement = window.getComputedStyle(positionedElement);
			const borderX = parseInt(stylePositionedElement.getPropertyValue("border-left-width"));
			const borderY = parseInt(stylePositionedElement.getPropertyValue("border-top-width"));
			noteElement.style.setProperty("position", "absolute");
			noteElement.style.setProperty("left", (clientX - boundingRectPositionedElement.x - deltaX - borderX) + "px");
			noteElement.style.setProperty("top", (clientY - boundingRectPositionedElement.y - deltaY - borderY) + "px");
		}

		function resetAnchorNote(containerElement) {
			const noteId = containerElement.dataset.noteId;
			const noteElement = containerElement.shadowRoot.childNodes[1];
			noteElement.classList.remove(NOTE_ANCHORED_CLASS);
			deleteNoteRef(containerElement, noteId);
			addNoteRef(document.documentElement, noteId);
			document.documentElement.insertBefore(containerElement, maskPageElement.getRootNode().host);
		}

		function getPosition(event) {
			if (event.touches && event.touches.length) {
				const touch = event.touches[0];
				return touch;
			} else {
				return event;
			}
		}

		function highlightSelection() {
			let highlightId = 0;
			document.querySelectorAll("." + HIGHLIGHT_CLASS).forEach(highlightedElement => highlightId = Math.max(highlightId, highlightedElement.dataset.singlefileHighlightId));
			highlightId++;
			const selection = window.getSelection();
			const highlightedNodes = new Set();
			for (let indexRange = 0; indexRange < selection.rangeCount; indexRange++) {
				const range = selection.getRangeAt(indexRange);
				if (!range.collapsed) {
					if (range.commonAncestorContainer.nodeType == range.commonAncestorContainer.TEXT_NODE) {
						let contentText = range.startContainer.splitText(range.startOffset);
						contentText = contentText.splitText(range.endOffset);
						addHighLightedNode(contentText.previousSibling);
					} else {
						const treeWalker = document.createTreeWalker(range.commonAncestorContainer, NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_TEXT);
						let highlightNodes;
						while (treeWalker.nextNode()) {
							if (highlightNodes && !treeWalker.currentNode.contains(range.endContainer)) {
								addHighLightedNode(treeWalker.currentNode);
							}
							if (treeWalker.currentNode == range.startContainer) {
								if (range.startContainer.nodeType == range.startContainer.TEXT_NODE) {
									const contentText = range.startContainer.splitText(range.startOffset);
									treeWalker.nextNode();
									addHighLightedNode(contentText);
								} else {
									addHighLightedNode(range.startContainer.childNodes[range.startOffset]);
								}
								highlightNodes = true;
							}
							if (treeWalker.currentNode == range.endContainer) {
								if (range.endContainer.nodeType == range.endContainer.TEXT_NODE) {
									const contentText = range.endContainer.splitText(range.endOffset);
									treeWalker.nextNode();
									addHighLightedNode(contentText.previousSibling);
								} else {
									addHighLightedNode(range.endContainer.childNodes[range.endOffset]);
								}
								highlightNodes = false;
							}
						}
						range.collapse();
					}
				}
			}
			highlightedNodes.forEach(node => highlightNode(node));

			function addHighLightedNode(node) {
				if (node && node.textContent.trim()) {
					if (node.nodeType == node.TEXT_NODE && node.parentElement.childNodes.length == 1 && node.parentElement.classList.contains(HIGHLIGHT_CLASS)) {
						highlightedNodes.add(node.parentElement);
					} else {
						highlightedNodes.add(node);
					}
				}
			}

			function highlightNode(node) {
				if (node.nodeType == node.ELEMENT_NODE) {
					resetHighlightedElement(node);
					node.classList.add(HIGHLIGHT_CLASS);
					node.classList.add(highlightColor);
					node.dataset.singlefileHighlightId = highlightId;
				} else if (node.parentElement) {
					highlightTextNode(node);
				}
			}

			function highlightTextNode(node) {
				const spanElement = document.createElement("span");
				spanElement.classList.add(HIGHLIGHT_CLASS);
				spanElement.classList.add(highlightColor);
				spanElement.textContent = node.textContent;
				spanElement.dataset.singlefileHighlightId = highlightId;
				node.parentNode.replaceChild(spanElement, node);
				return spanElement;
			}
		}

		function getParents(element) {
			const path = [];
			while (element) {
				path.push(element);
				element = element.parentElement;
			}
			return path;
		}

		function formatPage(applySystemTheme, contentWidth) {
			if (pageCompressContent) {
				serializeShadowRoots(document);
				previousContent = document.documentElement.cloneNode(true);
				deserializeShadowRoots(document);
			} else {
				previousContent = getContent(false);
			}
			const shadowRoots = {};
			const classesToPreserve = ["single-file-highlight", "single-file-highlight-yellow", "single-file-highlight-green", "single-file-highlight-pink", "single-file-highlight-blue"];
			document.querySelectorAll(NOTE_TAGNAME).forEach(containerElement => {
				shadowRoots[containerElement.dataset.noteId] = containerElement.shadowRoot;
				const className = "singlefile-note-id-" + containerElement.dataset.noteId;
				containerElement.classList.add(className);
				classesToPreserve.push(className);
			});
			const optionsElement = document.querySelector("script[type=\"application/json\"][" + SCRIPT_OPTIONS + "]");
			const article = new Readability(document, { classesToPreserve }).parse();
			const articleMetadata = Object.assign({}, article);
			delete articleMetadata.content;
			delete articleMetadata.textContent;
			for (const key in articleMetadata) {
				if (articleMetadata[key] == null) {
					delete articleMetadata[key];
				}
			}
			removedElements = [];
			removedElementIndex = 0;
			document.body.innerHTML = "";
			const domParser = new DOMParser();
			const doc = domParser.parseFromString(article.content, "text/html");
			const contentEditable = document.body.contentEditable;
			document.documentElement.replaceChild(doc.body, document.body);
			if (optionsElement) {
				document.body.appendChild(optionsElement);
			}
			document.querySelectorAll(NOTE_TAGNAME).forEach(containerElement => {
				const noteId = (Array.from(containerElement.classList).find(className => /singlefile-note-id-\d+/.test(className))).split("singlefile-note-id-")[1];
				containerElement.classList.remove("singlefile-note-id-" + noteId);
				containerElement.dataset.noteId = noteId;
				if (!containerElement.shadowRoot) {
					containerElement.attachShadow({ mode: "open" });
					containerElement.shadowRoot.appendChild(shadowRoots[noteId]);
				}
			});
			document.querySelectorAll(NOTE_TAGNAME).forEach(containerElement => shadowRoots[containerElement.dataset.noteId].childNodes.forEach(node => containerElement.shadowRoot.appendChild(node)));
			document.body.contentEditable = contentEditable;
			document.head.querySelectorAll("style").forEach(styleElement => styleElement.remove());
			const styleElement = document.createElement("style");
			styleElement.textContent = getStyleFormattedPage(contentWidth);
			document.head.appendChild(styleElement);
			document.body.classList.add("moz-reader-content");
			document.body.classList.add("content-width6");
			document.body.classList.add("reader-show-element");
			document.body.classList.add("sans-serif");
			document.body.classList.add("container");
			document.body.classList.add("line-height4");
			const prefersColorSchemeDark = matchMedia("(prefers-color-scheme: dark)");
			if (applySystemTheme && prefersColorSchemeDark && prefersColorSchemeDark.matches) {
				document.body.classList.add("dark");
			}
			document.body.style.setProperty("display", "block");
			document.body.style.setProperty("padding", "24px");
			const titleElement = document.createElement("h1");
			titleElement.classList.add("reader-title");
			titleElement.textContent = article.title;
			document.body.insertBefore(titleElement, document.body.firstChild);
			const existingMetaDataElement = document.querySelector("script[id=singlefile-readability-metadata]");
			if (existingMetaDataElement) {
				existingMetaDataElement.remove();
			}
			const metaDataElement = document.createElement("script");
			metaDataElement.type = "application/json";
			metaDataElement.id = "singlefile-readability-metadata";
			metaDataElement.textContent = JSON.stringify(articleMetadata, null, 2);
			document.head.appendChild(metaDataElement);
			document.querySelectorAll("a[href]").forEach(element => {
				const href = element.getAttribute("href").trim();
				if (href.startsWith(document.baseURI + "#")) {
					element.setAttribute("href", href.substring(document.baseURI.length));
				}
			});
			insertHighlightStylesheet(document);
			maskPageElement = getMaskElement(PAGE_MASK_CLASS, PAGE_MASK_CONTAINER_CLASS);
			maskNoteElement = getMaskElement(NOTE_MASK_CLASS);
			reflowNotes();
			onUpdate(false);
		}

		async function cancelFormatPage() {
			if (previousContent) {
				const contentEditable = document.body.contentEditable;
				if (pageCompressContent) {
					document.replaceChild(previousContent, document.documentElement);
					deserializeShadowRoots(document);
					await initPage();
				} else {
					await init({ content: previousContent }, { reset: true });
				}
				document.body.contentEditable = contentEditable;
				onUpdate(false);
				previousContent = null;
			}
		}

		function insertHighlightStylesheet(doc) {
			if (!doc.querySelector("." + HIGHLIGHTS_STYLESHEET_CLASS)) {
				const styleheetHighlights = getStyleElement(HIGHLIGHTS_WEB_STYLESHEET);
				styleheetHighlights.classList.add(HIGHLIGHTS_STYLESHEET_CLASS);
				doc.documentElement.appendChild(styleheetHighlights);
			}
		}

		function getContent(compressHTML) {
			unhighlightCutElement();
			serializeShadowRoots(document);
			singlefile.helper.markInvalidNesting(document);
			const doc = document.cloneNode(true);
			disableHighlight(doc);
			resetSelectedElements(doc);
			deserializeShadowRoots(doc);
			deserializeShadowRoots(document);
			doc.documentElement.classList.remove(CUT_MODE_CLASS);
			doc.querySelectorAll("[" + DISABLED_NOSCRIPT_ATTRIBUTE_NAME + "]").forEach(element => {
				element.textContent = element.getAttribute(DISABLED_NOSCRIPT_ATTRIBUTE_NAME);
				element.removeAttribute(DISABLED_NOSCRIPT_ATTRIBUTE_NAME);
			});
			doc.querySelectorAll("." + MASK_CLASS + ", " + singlefile.helper.INFOBAR_TAGNAME + ", ." + REMOVED_CONTENT_CLASS).forEach(element => element.remove());
			if (includeInfobar) {
				const options = singlefile.helper.extractInfobarData(doc);
				options.openInfobar = openInfobar;
				options.infobarPositionAbsolute = infobarPositionAbsolute;
				options.infobarPositionTop = infobarPositionTop;
				options.infobarPositionRight = infobarPositionRight;
				options.infobarPositionBottom = infobarPositionBottom;
				options.infobarPositionLeft = infobarPositionLeft;
				singlefile.helper.appendInfobar(doc, options);
			}
			doc.querySelectorAll("." + HIGHLIGHT_CLASS).forEach(noteElement => noteElement.classList.remove(HIGHLIGHT_HIDDEN_CLASS));
			doc.querySelectorAll(`template[${SHADOWROOT_ATTRIBUTE_NAME}]`).forEach(templateElement => {
				const noteElement = templateElement.querySelector("." + NOTE_CLASS);
				if (noteElement) {
					noteElement.classList.remove(NOTE_HIDDEN_CLASS);
				}
				const mainElement = templateElement.querySelector("textarea");
				if (mainElement) {
					mainElement.textContent = mainElement.value;
				}
			});
			doc.querySelectorAll("iframe").forEach(element => {
				const pointerEvents = "pointer-events";
				element.style.setProperty(pointerEvents, element.style.getPropertyValue("-sf-" + pointerEvents), element.style.getPropertyPriority("-sf-" + pointerEvents));
				element.style.removeProperty("-sf-" + pointerEvents);
			});
			doc.body.removeAttribute("contentEditable");
			if (pageCompressContent) {
				const pageFilename = pageResources
					.filter(resource => resource.filename.endsWith("index.html"))
					.sort((resourceLeft, resourceRight) => resourceLeft.filename.length - resourceRight.filename.length)[0].filename;
				const resources = pageResources.filter(resource => resource.parentResources.includes(pageFilename));
				doc.querySelectorAll("[src]").forEach(element => resources.forEach(resource => {
					if (element.src == resource.content) {
						element.src = resource.name;
					}
				}));
				let content = singlefile.helper.serialize(doc, compressHTML);
				resources.sort((resourceLeft, resourceRight) => resourceRight.content.length - resourceLeft.content.length);
				resources.forEach(resource => content = content.replaceAll(resource.content, resource.name));
				return content + "<script " + SCRIPT_TEMPLATE_SHADOW_ROOT + ">" + getEmbedScript() + "</script>";
			} else {
				return singlefile.helper.serialize(doc, compressHTML) + "<script " + SCRIPT_TEMPLATE_SHADOW_ROOT + ">" + getEmbedScript() + "</script>";
			}
		}

		function onUpdate(saved) {
			window.parent.postMessage(JSON.stringify({ "method": "onUpdate", saved }), "*");
		}

		function waitResourcesLoad() {
			return new Promise(resolve => {
				let counterMutations = 0;
				const done = () => {
					observer.disconnect();
					resolve();
				};
				let timeoutInit = setTimeout(done, 100);
				const observer = new MutationObserver(() => {
					if (counterMutations < 20) {
						counterMutations++;
						clearTimeout(timeoutInit);
						timeoutInit = setTimeout(done, 100);
					} else {
						done();
					}
				});
				observer.observe(document, { subtree: true, childList: true, attributes: true });
			});
		}

		function reflowNotes() {
			document.querySelectorAll(NOTE_TAGNAME).forEach(containerElement => {
				const noteElement = containerElement.shadowRoot.querySelector("." + NOTE_CLASS);
				const noteBoundingRect = noteElement.getBoundingClientRect();
				const anchorElement = getAnchorElement(containerElement);
				const anchorBoundingRect = anchorElement.getBoundingClientRect();
				const maxX = anchorBoundingRect.x + Math.max(0, anchorBoundingRect.width - noteBoundingRect.width);
				const minX = anchorBoundingRect.x;
				const maxY = anchorBoundingRect.y + Math.max(0, anchorBoundingRect.height - NOTE_HEADER_HEIGHT);
				const minY = anchorBoundingRect.y;
				let left = parseInt(noteElement.style.getPropertyValue("left"));
				let top = parseInt(noteElement.style.getPropertyValue("top"));
				if (noteBoundingRect.x > maxX) {
					left -= noteBoundingRect.x - maxX;
				}
				if (noteBoundingRect.x < minX) {
					left += minX - noteBoundingRect.x;
				}
				if (noteBoundingRect.y > maxY) {
					top -= noteBoundingRect.y - maxY;
				}
				if (noteBoundingRect.y < minY) {
					top += minY - noteBoundingRect.y;
				}
				noteElement.style.setProperty("position", "absolute");
				noteElement.style.setProperty("left", left + "px");
				noteElement.style.setProperty("top", top + "px");
			});
		}

		function resetHighlightedElement(element) {
			element.classList.remove(HIGHLIGHT_CLASS);
			element.classList.remove("single-file-highlight-yellow");
			element.classList.remove("single-file-highlight-pink");
			element.classList.remove("single-file-highlight-blue");
			element.classList.remove("single-file-highlight-green");
			delete element.dataset.singlefileHighlightId;
		}

		function serializeShadowRoots(node) {
			node.querySelectorAll("*").forEach(element => {
				const shadowRoot = getShadowRoot(element);
				if (shadowRoot) {
					serializeShadowRoots(shadowRoot);
					const templateElement = document.createElement("template");
					templateElement.setAttribute(SHADOWROOT_ATTRIBUTE_NAME, "open");
					Array.from(shadowRoot.childNodes).forEach(childNode => templateElement.appendChild(childNode));
					element.appendChild(templateElement);
				}
			});
		}

		function deserializeShadowRoots(node) {
			node.querySelectorAll(`template[${SHADOWROOT_ATTRIBUTE_NAME}]`).forEach(element => {
				if (element.parentElement) {
					let shadowRoot = getShadowRoot(element.parentElement);
					if (shadowRoot) {
						Array.from(element.childNodes).forEach(node => shadowRoot.appendChild(node));
						element.remove();
					} else {
						try {
							shadowRoot = element.parentElement.attachShadow({ mode: "open" });
							const contentDocument = (new DOMParser()).parseFromString(element.innerHTML, "text/html");
							Array.from(contentDocument.head.childNodes).forEach(node => shadowRoot.appendChild(node));
							Array.from(contentDocument.body.childNodes).forEach(node => shadowRoot.appendChild(node));
							// eslint-disable-next-line no-unused-vars
						} catch (error) {
							// ignored
						}
					}
					if (shadowRoot) {
						deserializeShadowRoots(shadowRoot);
					}
				}
			});
		}

		function getMaskElement(className, containerClassName) {
			let maskElement = document.documentElement.querySelector("." + className);
			if (!maskElement) {
				maskElement = document.createElement("div");
				const maskContainerElement = document.createElement("div");
				if (containerClassName) {
					maskContainerElement.classList.add(containerClassName);
				}
				maskContainerElement.classList.add(MASK_CLASS);
				const firstNote = document.querySelector(NOTE_TAGNAME);
				if (firstNote && firstNote.parentElement == document.documentElement) {
					document.documentElement.insertBefore(maskContainerElement, firstNote);
				} else {
					document.documentElement.appendChild(maskContainerElement);
				}
				maskElement.classList.add(className);
				const maskShadow = maskContainerElement.attachShadow({ mode: "open" });
				maskShadow.appendChild(getStyleElement(MASK_WEB_STYLESHEET));
				maskShadow.appendChild(maskElement);
				return maskElement;
			}
		}

		function getStyleFormattedPage(contentWidth) {
			return `
	/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

/* Avoid adding ID selector rules in this style sheet, since they could
 * inadvertently match elements in the article content. */

:root {
  --grey-90-a10: rgba(12, 12, 13, 0.1);
  --grey-90-a20: rgba(12, 12, 13, 0.2);
  --grey-90-a30: rgba(12, 12, 13, 0.3);
  --grey-90-a80: rgba(12, 12, 13, 0.8);
  --grey-30: #d7d7db;
  --blue-40: #45a1ff;
  --blue-40-a30: rgba(69, 161, 255, 0.3);
  --blue-60: #0060df;
  --body-padding: 64px;
  --font-size: 12;
  --content-width: ${contentWidth}em;
  --line-height: 1.6em;
}

body {
  --main-background: #fff;
  --main-foreground: #333;
  --font-color: #000000;
  --primary-color: #0B83FF;
  --toolbar-border: var(--grey-90-a20);
  --toolbar-transparent-border: transparent;
  --toolbar-box-shadow: var(--grey-90-a10);
  --toolbar-button-background: transparent;
  --toolbar-button-background-hover: var(--grey-90-a10);
  --toolbar-button-foreground-hover: var(--font-color);
  --toolbar-button-background-active: var(--grey-90-a20);
  --toolbar-button-foreground-active: var(--primary-color);
  --toolbar-button-border: transparent;
  --toolbar-button-border-hover: transparent;
  --toolbar-button-border-active: transparent;
  --tooltip-background: var(--grey-90-a80);
  --tooltip-foreground: white;
  --tooltip-border: transparent;
  --popup-background: white;
  --popup-border: rgba(0, 0, 0, 0.12);
  --opaque-popup-border: #e0e0e0;
  --popup-line: var(--grey-30);
  --popup-shadow: rgba(49, 49, 49, 0.3);
  --popup-button-background: #edecf0;
  --popup-button-background-hover: hsla(0,0%,70%,.4);
  --popup-button-foreground-hover: var(--font-color);
  --popup-button-background-active: hsla(240,5%,5%,.15);
  --selected-background: var(--blue-40-a30);
  --selected-border: var(--blue-40);
  --font-value-border: var(--grey-30);
  --icon-fill: #3b3b3c;
  --icon-disabled-fill: #8080807F;
  --link-foreground: var(--blue-60);
  --link-selected-foreground: #333;
  --visited-link-foreground: #b5007f;
  /* light colours */
}

body.sepia {
  --main-background: #f4ecd8;
  --main-foreground: #5b4636;
  --toolbar-border: #5b4636;
}

body.dark {
  --main-background: rgb(28, 27, 34);
  --main-foreground: #eee;
  --font-color: #fff;
  --toolbar-border: #4a4a4b;
  --toolbar-box-shadow: black;
  --toolbar-button-background-hover: var(--grey-90-a30);
  --toolbar-button-background-active: var(--grey-90-a80);
  --tooltip-background: black;
  --tooltip-foreground: white;
  --popup-background: rgb(66,65,77);
  --opaque-popup-border: #434146;
  --popup-line: rgb(82, 82, 94);
  --popup-button-background: #5c5c61;
  --popup-button-background-active: hsla(0,0%,70%,.6);
  --selected-background: #3E6D9A;
  --font-value-border: #656468;
  --icon-fill: #fff;
  --icon-disabled-fill: #ffffff66;
  --link-foreground: #45a1ff;
  --link-selected-foreground: #fff;
  --visited-link-foreground: #e675fd;
  /* dark colours */
}

body.hcm {
  --main-background: Canvas;
  --main-foreground: CanvasText;
  --font-color: CanvasText;
  --primary-color: SelectedItem;
  --toolbar-border: CanvasText;
   /* We need a true transparent but in HCM this would compute to an actual color,
      so select the page's background color instead: */
  --toolbar-transparent-border: Canvas;
  --toolbar-box-shadow: Canvas;
  --toolbar-button-background: ButtonFace;
  --toolbar-button-background-hover: ButtonText;
  --toolbar-button-foreground-hover: ButtonFace;
  --toolbar-button-background-active: SelectedItem;
  --toolbar-button-foreground-active: SelectedItemText;
  --toolbar-button-border: ButtonText;
  --toolbar-button-border-hover: ButtonText;
  --toolbar-button-border-active: ButtonText;
  --tooltip-background: Canvas;
  --tooltip-foreground: CanvasText;
  --tooltip-border: CanvasText;
  --popup-background: Canvas;
  --popup-border: CanvasText;
  --opaque-popup-border: CanvasText;
  --popup-line: CanvasText;
  --popup-button-background: ButtonFace;
  --popup-button-background-hover: ButtonText;
  --popup-button-foreground-hover: ButtonFace;
  --popup-button-background-active: ButtonText;
  --selected-background: Canvas;
  --selected-border: SelectedItem;
  --font-value-border: CanvasText;
  --icon-fill: ButtonText;
  --icon-disabled-fill: GrayText;
  --link-foreground: LinkText;
  --link-selected-foreground: ActiveText;
  --visited-link-foreground: VisitedText;
}

body {
  margin: 0;
  padding: var(--body-padding);
  background-color: var(--main-background);
  color: var(--main-foreground);
}

body.loaded {
  transition: color 0.4s, background-color 0.4s;
}

body.dark *::-moz-selection {
  background-color: var(--selected-background);
}

a::-moz-selection {
  color: var(--link-selected-foreground);
}

body.sans-serif,
body.sans-serif .remove-button {
  font-family: Helvetica, Arial, sans-serif;
}

body.serif,
body.serif .remove-button {
  font-family: Georgia, "Times New Roman", serif;
}

/* Override some controls and content styles based on color scheme */

body.light > .container > .header > .domain {
  border-bottom-color: #333333 !important;
}

body.sepia > .container > .header > .domain {
  border-bottom-color: #5b4636 !important;
}

body.dark > .container > .header > .domain {
  border-bottom-color: #eeeeee !important;
}

body.light blockquote {
  border-inline-start: 2px solid #333333 !important;
}

body.sepia blockquote {
  border-inline-start: 2px solid #5b4636 !important;
}

body.dark blockquote {
  border-inline-start: 2px solid #eeeeee !important;
}

.light-button {
  color: #333333;
  background-color: #ffffff;
}

.dark-button {
  color: #eeeeee;
  background-color: #1c1b22;
}

.sepia-button {
  color: #5b4636;
  background-color: #f4ecd8;
}

.auto-button {
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .auto-button {
    background-color: #1c1b22;
    color: #eeeeee;
  }
}

@media not (prefers-color-scheme: dark) {
  .auto-button {
    background-color: #ffffff;
    color: #333333;
  }
}

/* Loading/error message */

.reader-message {
  margin-top: 40px;
  display: none;
  text-align: center;
  width: 100%;
  font-size: 0.9em;
}

/* Detector element to see if we're at the top of the doc or not. */
.top-anchor {
  position: absolute;
  top: 0;
  width: 0;
  height: 5px;
  pointer-events: none;
}

/* Header */

.header {
  text-align: start;
  display: none;
}

.domain {
  font-size: 0.9em;
  line-height: 1.48em;
  padding-bottom: 4px;
  font-family: Helvetica, Arial, sans-serif;
  text-decoration: none;
  border-bottom: 1px solid;
  color: var(--link-foreground);
}

.header > h1 {
  font-size: 1.6em;
  line-height: 1.25em;
  width: 100%;
  margin: 30px 0;
  padding: 0;
}

.header > .credits {
  font-size: 0.9em;
  line-height: 1.48em;
  margin: 0 0 10px;
  padding: 0;
  font-style: italic;
}

.header > .meta-data {
  font-size: 0.65em;
  margin: 0 0 15px;
}

.reader-estimated-time {
  text-align: match-parent;
}

/* Controls toolbar */

.toolbar-container {
  position: sticky;
  z-index: 2;
  top: 32px;
  height: 0; /* take up no space, so body is at the top. */

  /* As a stick container, we're positioned relative to the body. Move us to
   * the edge of the viewport using margins, and take the width of
   * the body padding into account for calculating our width.
   */
  margin-inline-start: calc(-1 * var(--body-padding));
  width: max(var(--body-padding), calc((100% - var(--content-width)) / 2 + var(--body-padding)));
  font-size: var(--font-size); /* Needed to ensure 'em' units match, is reset for .reader-controls */
}

.toolbar {
  padding-block: 16px;
  border: 1px solid var(--toolbar-border);
  border-radius: 6px;
  box-shadow: 0 2px 8px var(--toolbar-box-shadow);

  width: 32px; /* basic width, without padding/border */

  /* padding should be 16px, except if there's not enough space for that, in
   * which case use half the available space for padding (=25% on each side).
   * The 34px here is the width + borders. We use a variable because we need
   * to know this size for the margin calculation.
   */
  --inline-padding: min(16px, calc(25% - 0.25 * 34px));
  padding-inline: var(--inline-padding);

  /* Keep a maximum of 96px distance to the body, but center once the margin
   * gets too small. We need to set the start margin, however...
   * To center, we'd want 50% of the container, but we'd subtract half our
   * own width (16px) and half the border (1px) and the inline padding.
   * When the other margin would be 96px, we want 100% - 96px - the complete
   * width of the actual toolbar (34px + 2 * padding)
   */
  margin-inline-start: max(calc(50% - 17px - var(--inline-padding)), calc(100% - 96px - 34px - 2 * var(--inline-padding)));

  font-family: Helvetica, Arial, sans-serif;
  list-style: none;
  user-select: none;
}

@media (prefers-reduced-motion: no-preference) {
  .toolbar {
    transition-property: border-color, box-shadow;
    transition-duration: 250ms;
  }

  .toolbar .toolbar-button {
    transition-property: opacity;
    transition-duration: 250ms;
  }

  .toolbar-container.scrolled .toolbar:not(:hover, :focus-within) {
    border-color: var(--toolbar-transparent-border);
    box-shadow: 0 2px 8px transparent;
  }

  .toolbar-container.scrolled .toolbar:not(:hover, :focus-within) .toolbar-button {
    opacity: 0.6;
  }

  .toolbar-container.transition-location {
    transition-duration: 250ms;
    transition-property: width;
  }
}

.toolbar-container.overlaps .toolbar-button {
  opacity: 0.1;
}

.dropdown-open .toolbar {
  border-color: var(--toolbar-transparent-border);
  box-shadow: 0 2px 8px transparent;
}

.reader-controls {
  /* We use 'em's above this node to get it to the right size. However,
   * the UI inside the toolbar should use a fixed, smaller size. */
  font-size: 11px;
}

button {
  -moz-context-properties: fill;
  color: var(--font-color);
  fill: var(--icon-fill);
}

button:disabled {
  fill: var(--icon-disabled-fill);
}

.toolbar button::-moz-focus-inner {
  border: 0;
}

.toolbar-button {
  position: relative;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--toolbar-button-border);
  border-radius: 4px;
  margin: 4px 0;
  background-color: var(--toolbar-button-background);
  background-size: 16px 16px;
  background-position: center;
  background-repeat: no-repeat;
}

.toolbar-button:hover,
.toolbar-button:focus-visible {
  background-color: var(--toolbar-button-background-hover);
  border-color: var(--toolbar-button-border-hover);
  fill: var(--toolbar-button-foreground-hover);
}

.open .toolbar-button,
.toolbar-button:hover:active {
  background-color: var(--toolbar-button-background-active);
  border-color: var(--toolbar-button-border-active);
  color: var(--toolbar-button-foreground-active);
  fill: var(--toolbar-button-foreground-active);
}

.hover-label {
  position: absolute;
  top: 4px;
  inset-inline-start: 36px;
  line-height: 16px;
  white-space: pre; /* make sure we don't wrap */
  background-color: var(--tooltip-background);
  color: var(--tooltip-foreground);
  padding: 4px 8px;
  border: 1px solid var(--tooltip-border);
  border-radius: 2px;
  visibility: hidden;
  pointer-events: none;
  /* Put above .dropdown .dropdown-popup, which has z-index: 1000. */
  z-index: 1001;
}

/* Show the hover tooltip on non-dropdown buttons. */
.toolbar-button:not(.dropdown-toggle):hover > .hover-label,
.toolbar-button:not(.dropdown-toggle):focus-visible > .hover-label,
/* Show the hover tooltip for dropdown buttons unless its dropdown is open. */
:not(.open) > li > .dropdown-toggle:hover > .hover-label,
:not(.open) > li > .dropdown-toggle:focus-visible > .hover-label {
  visibility: visible;
}

.dropdown {
  text-align: center;
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.dropdown li {
  margin: 0;
  padding: 0;
}

/* Popup */

.dropdown .dropdown-popup {
  text-align: start;
  position: absolute;
  inset-inline-start: 40px;
  z-index: 1000;
  background-color: var(--popup-background);
  visibility: hidden;
  border-radius: 4px;
  border: 1px solid var(--popup-border);
  box-shadow: 0 0 10px 0 var(--popup-shadow);
  top: 0;
}

.open > .dropdown-popup {
  visibility: visible;
}

.dropdown-arrow {
  position: absolute;
  height: 24px;
  width: 16px;
  inset-inline-start: -16px;
  background-image: url("chrome://global/skin/reader/RM-Type-Controls-Arrow.svg");
  display: block;
  -moz-context-properties: fill, stroke;
  fill: var(--popup-background);
  stroke: var(--opaque-popup-border);
  pointer-events: none;
}

.dropdown-arrow:dir(rtl) {
  transform: scaleX(-1);
}

/* Align the style dropdown arrow (narrate does its own) */
.style-dropdown .dropdown-arrow {
  top: 7px;
}

/* Font style popup */

.radio-button {
  /* We visually hide these, but we keep them around so they can be focused
   * and changed by interacting with them via the label, or the keyboard, or
   * assistive technology.
   */
  opacity: 0;
  pointer-events: none;
  position: absolute;
}

.radiorow,
.buttonrow {
  display: flex;
  align-content: center;
  justify-content: center;
}

.content-width-value,
.font-size-value,
.line-height-value {
  box-sizing: border-box;
  width: 36px;
  height: 20px;
  line-height: 20px;
  display: flex;
  justify-content: center;
  align-content: center;
  margin: auto;
  border-radius: 10px;
  border: 1px solid var(--font-value-border);
  background-color: var(--popup-button-background);
}

.buttonrow > button {
  border: 0;
  height: 60px;
  width: 90px;
  background-color: transparent;
  background-repeat: no-repeat;
  background-position: center;
}

.buttonrow > button:enabled:hover,
.buttonrow > button:enabled:focus-visible {
  background-color: var(--popup-button-background-hover);
  color: var(--popup-button-foreground-hover);
  fill: var(--popup-button-foreground-hover);
}

.buttonrow > button:enabled:hover:active {
  background-color: var(--popup-button-background-active);
}

.radiorow:not(:last-child),
.buttonrow:not(:last-child) {
  border-bottom: 1px solid var(--popup-line);
}

body.hcm .buttonrow.line-height-buttons {
  /* On HCM the .color-scheme-buttons row is hidden, so remove the border from the row above it */
  border-bottom: none;
}

.radiorow > label {
  position: relative;
  box-sizing: border-box;
  border-radius: 2px;
  border: 2px solid var(--popup-border);
}

.radiorow > label[checked] {
  border-color: var(--selected-border);
}

/* For the hover style, we draw a line under the item by means of a
 * pseudo-element. Because these items are variable height, and
 * because their contents are variable height, position it absolutely,
 * and give it a width of 100% (the content width) + 4px for the 2 * 2px
 * border width.
 */
.radiorow > input[type=radio]:focus-visible + label::after,
.radiorow > label:hover::after {
  content: "";
  display: block;
  border-bottom: 2px solid var(--selected-border);
  width: calc(100% + 4px);
  position: absolute;
  /* to skip the 2 * 2px border + 2px spacing. */
  bottom: -6px;
  /* Match the start of the 2px border of the element: */
  inset-inline-start: -2px;
}

.font-type-buttons > label {
  height: 64px;
  width: 105px;
  /* Slightly more space between these items. */
  margin: 10px;
  /* Center the Sans-serif / Serif labels */
  text-align: center;
  background-size: 63px 39px;
  background-repeat: no-repeat;
  background-position: center 18px;
  background-color: var(--popup-button-background);
  fill: currentColor;
  -moz-context-properties: fill;
  /* This mostly matches baselines, but because of differences in font
   * baselines between serif and sans-serif, this isn't always enough. */
  line-height: 1;
  padding-top: 2px;
}

.font-type-buttons > label[checked] {
  background-color: var(--selected-background);
}

.sans-serif-button {
  font-family: Helvetica, Arial, sans-serif;
  background-image: url("chrome://global/skin/reader/RM-Sans-Serif.svg");
}

/* Tweak padding to match the baseline on mac */
:root[platform=macosx] .sans-serif-button {
  padding-top: 3px;
}

.serif-button {
  font-family: Georgia, "Times New Roman", serif;
  background-image: url("chrome://global/skin/reader/RM-Serif.svg");
}

body.hcm .color-scheme-buttons {
  /* Disallow selecting themes when HCM is on. */
  display: none;
}

.color-scheme-buttons > label {
  padding: 12px;
  height: 34px;
  font-size: 12px;
  /* Center the labels horizontally as well as vertically */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  /* We want 10px between items, but there's no margin collapsing in flexbox. */
  margin: 10px 5px;
}

.color-scheme-buttons > input:first-child + label {
  margin-inline-start: 10px;
}

.color-scheme-buttons > label:last-child {
  margin-inline-end: 10px;
}

/* Toolbar icons */

.close-button {
  background-image: url("chrome://global/skin/icons/close.svg");
}

.style-button {
  background-image: url("chrome://global/skin/reader/RM-Type-Controls-24x24.svg");
}

.minus-button {
  background-size: 18px 18px;
  background-image: url("chrome://global/skin/reader/RM-Minus-24x24.svg");
}

.plus-button {
  background-size: 18px 18px;
  background-image: url("chrome://global/skin/reader/RM-Plus-24x24.svg");
}

.content-width-minus-button {
  background-size: 42px 16px;
  background-image: url("chrome://global/skin/reader/RM-Content-Width-Minus-42x16.svg");
}

.content-width-plus-button {
  background-size: 44px 16px;
  background-image: url("chrome://global/skin/reader/RM-Content-Width-Plus-44x16.svg");
}

.line-height-minus-button {
  background-size: 34px 14px;
  background-image: url("chrome://global/skin/reader/RM-Line-Height-Minus-38x14.svg");
}

.line-height-plus-button {
  background-size: 34px 24px;
  background-image: url("chrome://global/skin/reader/RM-Line-Height-Plus-38x24.svg");
}

/* Mirror the line height buttons if the article is RTL. */
.reader-controls[articledir="rtl"] .line-height-minus-button,
.reader-controls[articledir="rtl"] .line-height-plus-button {
  transform: scaleX(-1);
}

@media print {
  .toolbar {
    display: none !important;
  }
}

/* Article content */

/* Note that any class names from the original article that we want to match on
 * must be added to CLASSES_TO_PRESERVE in ReaderMode.jsm, so that
 * Readability.js doesn't strip them out */

.container {
  margin: 0 auto;
  font-size: var(--font-size);
  max-width: var(--content-width);
  line-height: var(--line-height);
}

pre {
  font-family: inherit;
}

.moz-reader-content {
  display: none;
  font-size: 1em;
}

@media print {
  .moz-reader-content p,
  .moz-reader-content code,
  .moz-reader-content pre,
  .moz-reader-content blockquote,
  .moz-reader-content ul,
  .moz-reader-content ol,
  .moz-reader-content li,
  .moz-reader-content figure,
  .moz-reader-content .wp-caption {
    margin: 0 0 10px !important;
    padding: 0 !important;
  }
}

.moz-reader-content h1,
.moz-reader-content h2,
.moz-reader-content h3 {
  font-weight: bold;
}

.moz-reader-content h1 {
  font-size: 1.6em;
  line-height: 1.25em;
}

.moz-reader-content h2 {
  font-size: 1.2em;
  line-height: 1.51em;
}

.moz-reader-content h3 {
  font-size: 1em;
  line-height: 1.66em;
}

.moz-reader-content a:link {
  text-decoration: underline;
  font-weight: normal;
}

.moz-reader-content a:link,
.moz-reader-content a:link:hover,
.moz-reader-content a:link:active {
  color: var(--link-foreground);
}

.moz-reader-content a:visited {
  color: var(--visited-link-foreground);
}

.moz-reader-content * {
  max-width: 100%;
  height: auto;
}

.moz-reader-content p,
.moz-reader-content p,
.moz-reader-content code,
.moz-reader-content pre,
.moz-reader-content blockquote,
.moz-reader-content ul,
.moz-reader-content ol,
.moz-reader-content li,
.moz-reader-content figure,
.moz-reader-content .wp-caption {
  margin: -10px -10px 20px;
  padding: 10px;
  border-radius: 5px;
}

.moz-reader-content li {
  margin-bottom: 0;
}

.moz-reader-content li > ul,
.moz-reader-content li > ol {
  margin-bottom: -10px;
}

.moz-reader-content p > img:only-child,
.moz-reader-content p > a:only-child > img:only-child,
.moz-reader-content .wp-caption img,
.moz-reader-content figure img {
  display: block;
}

.moz-reader-content img[moz-reader-center] {
  margin-inline: auto;
}

.moz-reader-content .caption,
.moz-reader-content .wp-caption-text
.moz-reader-content figcaption {
  font-size: 0.9em;
  line-height: 1.48em;
  font-style: italic;
}

.moz-reader-content pre {
  white-space: pre-wrap;
}

.moz-reader-content blockquote {
  padding: 0;
  padding-inline-start: 16px;
}

.moz-reader-content ul,
.moz-reader-content ol {
  padding: 0;
}

.moz-reader-content ul {
  padding-inline-start: 30px;
  list-style: disc;
}

.moz-reader-content ol {
  padding-inline-start: 30px;
}

table,
th,
td {
  border: 1px solid currentColor;
  border-collapse: collapse;
  padding: 6px;
  vertical-align: top;
}

table {
  margin: 5px;
}

/* Visually hide (but don't display: none) screen reader elements */
.moz-reader-content .visually-hidden,
.moz-reader-content .visuallyhidden,
.moz-reader-content .sr-only {
  display: inline-block;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  border-width: 0;
}

/* Hide elements with common "hidden" class names */
.moz-reader-content .hidden,
.moz-reader-content .invisible {
  display: none;
}

/* Enforce wordpress and similar emoji/smileys aren't sized to be full-width,
 * see bug 1399616 for context. */
.moz-reader-content img.wp-smiley,
.moz-reader-content img.emoji {
  display: inline-block;
  border-width: 0;
  /* height: auto is implied from '.moz-reader-content *' rule. */
  width: 1em;
  margin: 0 .07em;
  padding: 0;
}

.reader-show-element {
  display: initial;
}

/* Provide extra spacing for images that may be aided with accompanying element such as <figcaption> */
.moz-reader-block-img:not(:last-child) {
  margin-block-end: 12px;
}

.moz-reader-wide-table {
  overflow-x: auto;
  display: block;
}

pre code {
  background-color: var(--main-background);
  border: 1px solid var(--font-color);
  display: block;
  overflow: auto;
}`;
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})();