diff -r 318533413200 -r a1707c607eec src/pyams_skin/resources/js/ext/tinymce/dev/classes/dom/StyleSheetLoader.js
--- a/src/pyams_skin/resources/js/ext/tinymce/dev/classes/dom/StyleSheetLoader.js	Sun Jul 19 02:02:20 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,189 +0,0 @@
-/**
- * StyleSheetLoader.js
- *
- * Copyright, Moxiecode Systems AB
- * Released under LGPL License.
- *
- * License: http://www.tinymce.com/license
- * Contributing: http://www.tinymce.com/contributing
- */
-
-/**
- * This class handles loading of external stylesheets and fires events when these are loaded.
- *
- * @class tinymce.dom.StyleSheetLoader
- * @private
- */
-define("tinymce/dom/StyleSheetLoader", [
-	"tinymce/util/Tools"
-], function(Tools) {
-	"use strict";
-
-	return function(document, settings) {
-		var idCount = 0, loadedStates = {}, maxLoadTime;
-
-		settings = settings || {};
-		maxLoadTime = settings.maxLoadTime || 5000;
-
-		function appendToHead(node) {
-			document.getElementsByTagName('head')[0].appendChild(node);
-		}
-
-		/**
-		 * Loads the specified css style sheet file and call the loadedCallback once it's finished loading.
-		 *
-		 * @method load
-		 * @param {String} url Url to be loaded.
-		 * @param {Function} loadedCallback Callback to be executed when loaded.
-		 * @param {Function} errorCallback Callback to be executed when failed loading.
-		 */
-		function load(url, loadedCallback, errorCallback) {
-			var link, style, startTime, state;
-
-			function passed() {
-				var callbacks = state.passed, i = callbacks.length;
-
-				while (i--) {
-					callbacks[i]();
-				}
-
-				state.status = 2;
-				state.passed = [];
-				state.failed = [];
-			}
-
-			function failed() {
-				var callbacks = state.failed, i = callbacks.length;
-
-				while (i--) {
-					callbacks[i]();
-				}
-
-				state.status = 3;
-				state.passed = [];
-				state.failed = [];
-			}
-
-			// Sniffs for older WebKit versions that have the link.onload but a broken one
-			function isOldWebKit() {
-				var webKitChunks = navigator.userAgent.match(/WebKit\/(\d*)/);
-				return !!(webKitChunks && webKitChunks[1] < 536);
-			}
-
-			// Calls the waitCallback until the test returns true or the timeout occurs
-			function wait(testCallback, waitCallback) {
-				if (!testCallback()) {
-					// Wait for timeout
-					if ((new Date().getTime()) - startTime < maxLoadTime) {
-						window.setTimeout(waitCallback, 0);
-					} else {
-						failed();
-					}
-				}
-			}
-
-			// Workaround for WebKit that doesn't properly support the onload event for link elements
-			// Or WebKit that fires the onload event before the StyleSheet is added to the document
-			function waitForWebKitLinkLoaded() {
-				wait(function() {
-					var styleSheets = document.styleSheets, styleSheet, i = styleSheets.length, owner;
-
-					while (i--) {
-						styleSheet = styleSheets[i];
-						owner = styleSheet.ownerNode ? styleSheet.ownerNode : styleSheet.owningElement;
-						if (owner && owner.id === link.id) {
-							passed();
-							return true;
-						}
-					}
-				}, waitForWebKitLinkLoaded);
-			}
-
-			// Workaround for older Geckos that doesn't have any onload event for StyleSheets
-			function waitForGeckoLinkLoaded() {
-				wait(function() {
-					try {
-						// Accessing the cssRules will throw an exception until the CSS file is loaded
-						var cssRules = style.sheet.cssRules;
-						passed();
-						return !!cssRules;
-					} catch (ex) {
-						// Ignore
-					}
-				}, waitForGeckoLinkLoaded);
-			}
-
-			url = Tools._addCacheSuffix(url);
-
-			if (!loadedStates[url]) {
-				state = {
-					passed: [],
-					failed: []
-				};
-
-				loadedStates[url] = state;
-			} else {
-				state = loadedStates[url];
-			}
-
-			if (loadedCallback) {
-				state.passed.push(loadedCallback);
-			}
-
-			if (errorCallback) {
-				state.failed.push(errorCallback);
-			}
-
-			// Is loading wait for it to pass
-			if (state.status == 1) {
-				return;
-			}
-
-			// Has finished loading and was success
-			if (state.status == 2) {
-				passed();
-				return;
-			}
-
-			// Has finished loading and was a failure
-			if (state.status == 3) {
-				failed();
-				return;
-			}
-
-			// Start loading
-			state.status = 1;
-			link = document.createElement('link');
-			link.rel = 'stylesheet';
-			link.type = 'text/css';
-			link.id = 'u' + (idCount++);
-			link.async = false;
-			link.defer = false;
-			startTime = new Date().getTime();
-
-			// Feature detect onload on link element and sniff older webkits since it has an broken onload event
-			if ("onload" in link && !isOldWebKit()) {
-				link.onload = waitForWebKitLinkLoaded;
-				link.onerror = failed;
-			} else {
-				// Sniff for old Firefox that doesn't support the onload event on link elements
-				// TODO: Remove this in the future when everyone uses modern browsers
-				if (navigator.userAgent.indexOf("Firefox") > 0) {
-					style = document.createElement('style');
-					style.textContent = '@import "' + url + '"';
-					waitForGeckoLinkLoaded();
-					appendToHead(style);
-					return;
-				} else {
-					// Use the id owner on older webkits
-					waitForWebKitLinkLoaded();
-				}
-			}
-
-			appendToHead(link);
-			link.href = url;
-		}
-
-		this.load = load;
-	};
-});
\ No newline at end of file