filter fonts with "loaded" or "loading" as status

lib/single-file/doc-helper.js

@@ -81,7 +81,7 @@ this.docHelper = this.docHelper || (() => {
 					elementsInfo = new Map(Array.from(elementsInfo).filter(([element]) => element.getAttribute(markerRemovedContent) != ""));
 				}
 				if (options.removeUnusedStyles) {
-					usedFonts = getUsedFonts(elementsInfo, Array.from(doc.fonts));
+					usedFonts = getUsedFonts(elementsInfo, Array.from(doc.fonts).filter(font => font.status == "loaded" || font.status == "loading"));
 				}
 				if (options.compressHTML) {
 					elementsInfo.forEach((elementInfo, element) => {