SingleFile/cli/back-ends/extensions/bypass-csp/index.js

/*
 * 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.
 */

const removedHeaders = ["content-security-policy"];

const browserAPI = this.browser || this.chrome;

browserAPI.webRequest.onHeadersReceived.addListener(
	function (details) {
		let responseHeaders = details.responseHeaders;
		responseHeaders = responseHeaders.filter(responseHeader => !removedHeaders.includes(responseHeader.name.toLowerCase()));
		return { responseHeaders };
	},
	{ urls: ["<all_urls>"] },
	["blocking", "responseHeaders"]
);