Merge branch 't/13387'

Author: oleq

CHANGES.md

@@ -22,6 +22,7 @@ Fixed Issues:
 * [#13143](http://dev.ckeditor.com/ticket/13143): [Edge] Fixed: Focus lost while opening the panel.
 * [#13494](http://dev.ckeditor.com/ticket/13494): Fixed: Error thrown in toolbar configurator if plugin requirements are unsatisfied.
 * [#11376](http://dev.ckeditor.com/ticket/11376): [IE11] Fixed: Loss of text when pasting bullet lists from Microsoft Word.
+* [#13387](http://dev.ckeditor.com/ticket/13387): [Edge] Fixed: "Permission denied" error thrown while loading the editor with developer tools open.
 
 ## CKEditor 4.5.1
 

plugins/wysiwygarea/plugin.js

@@ -27,9 +27,14 @@
 				// With IE, the custom domain has to be taken care at first,
 				// for other browers, the 'src' attribute should be left empty to
 				// trigger iframe's 'load' event.
-				src = CKEDITOR.env.air ? 'javascript:void(0)' : CKEDITOR.env.ie ? 'javascript:void(function(){' + encodeURIComponent( src ) + '}())' // jshint ignore:line
-					:
-					'';
+				// Microsoft Edge throws "Permission Denied" if treated like an IE (#13441).
+				if ( CKEDITOR.env.air ) {
+					src = 'javascript:void(0)'; // jshint ignore:line
+				} else if ( CKEDITOR.env.ie && !CKEDITOR.env.edge ) {
+					src = 'javascript:void(function(){' + encodeURIComponent( src ) + '}())'; // jshint ignore:line
+				} else {
+					src = '';
+				}
 
 				var iframe = CKEDITOR.dom.element.createFromHtml( '<iframe src="' + src + '" frameBorder="0"></iframe>' );
 				iframe.setStyles( { width: '100%', height: '100%' } );
@@ -41,7 +46,7 @@
 
 				// Asynchronous iframe loading is only required in IE>8 and Gecko (other reasons probably).
 				// Do not use it on WebKit as it'll break the browser-back navigation.
-				var useOnloadEvent = CKEDITOR.env.ie || CKEDITOR.env.gecko;
+				var useOnloadEvent = ( CKEDITOR.env.ie && !CKEDITOR.env.edge ) || CKEDITOR.env.gecko;
 				if ( useOnloadEvent )
 					iframe.on( 'load', onLoad );