fixes CSS coments removal issue

lib/single-file/single-file-core.js

@@ -736,7 +736,7 @@ this.SingleFileCore = this.SingleFileCore || (() => {
 			await Promise.all(Array.from(this.doc.querySelectorAll("style, link[rel*=stylesheet]"))
 				.map(async element => {
 					this.stylesheets.set(element, { media: element.media });
-					const options = { maxResourceSize: this.options.maxResourceSize, maxResourceSizeEnabled: this.options.maxResourceSizeEnabled, url: this.options.url, charSet: this.charSet };
+					const options = { maxResourceSize: this.options.maxResourceSize, maxResourceSizeEnabled: this.options.maxResourceSizeEnabled, url: this.options.url, charSet: this.charSet, compressCSS: this.options.compressCSS };
 					const isLinkTag = element.tagName.toLowerCase() == "link";
 					if (isLinkTag && element.rel.includes("alternate") && element.title) {
 						element.remove();
@@ -1099,9 +1099,6 @@ this.SingleFileCore = this.SingleFileCore || (() => {
 
 		static async resolveImportURLs(stylesheetContent, baseURI, options) {
 			stylesheetContent = DomProcessorHelper.resolveStylesheetURLs(stylesheetContent, baseURI, options);
-			if (options.compressCSS) {
-				stylesheetContent = DomUtil.removeCssComments(stylesheetContent);
-			}
 			const imports = DomUtil.getImportFunctions(stylesheetContent);
 			await Promise.all(imports.map(async cssImport => {
 				const match = DomUtil.matchImport(cssImport);
@@ -1112,6 +1109,9 @@ this.SingleFileCore = this.SingleFileCore || (() => {
 						if (DomUtil.testValidURL(resourceURL, baseURI, options.url)) {
 							const downloadOptions = { asDataURI: false, maxResourceSize: options.maxResourceSize, maxResourceSizeEnabled: options.maxResourceSizeEnabled, validateTextContentType: true };
 							let importedStylesheetContent = await Download.getContent(resourceURL, downloadOptions);
+							if (options.compressCSS) {
+								importedStylesheetContent = DomUtil.removeCssComments(importedStylesheetContent);
+							}
 							importedStylesheetContent = DomUtil.wrapMediaQuery(importedStylesheetContent, match.media);
 							if (stylesheetContent.includes(cssImport)) {
 								importedStylesheetContent = await DomProcessorHelper.resolveImportURLs(importedStylesheetContent, resourceURL, options);
@@ -1153,6 +1153,9 @@ this.SingleFileCore = this.SingleFileCore || (() => {
 			if (resourceURL && resourceURL != baseURI && resourceURL != ABOUT_BLANK_URI) {
 				const downloadOptions = { asDataURI: false, maxResourceSize: options.maxResourceSize, maxResourceSizeEnabled: options.maxResourceSizeEnabled, charSet: options.charSet };
 				let stylesheetContent = await Download.getContent(resourceURL, downloadOptions);
+				if (options.compressCSS) {
+					stylesheetContent = DomUtil.removeCssComments(stylesheetContent);
+				}
 				stylesheetContent = await DomProcessorHelper.resolveImportURLs(stylesheetContent, resourceURL, options);
 				return stylesheetContent;
 			}