Ticket #3710: 3710.patch

_source/plugins/htmldataprocessor/plugin.js

@@ -191 +191 @@
                 return html.replace( protectAttributeRegex, '$& _cke_saved_$1' );
         }
 
+        var protectStyleTagsRegex = /(<\/?)style(?=[^0-9A-Za-z])/gi;
+        var unprotectStyleTagsRegex = /(<\/?)cke:style(?=[^0-9A-Za-z])/gi;
+
         CKEDITOR.plugins.add( 'htmldataprocessor',
         {
                 requires : [ 'htmlwriter' ],
@@ -227 +230 @@
                         // the code.
                         data = protectAttributes( data );
 
+                        // IE remvoes style tags from innerHTML. (#3710).
+                        if ( CKEDITOR.env.ie )
+                                data = data.replace( protectStyleTagsRegex, '$1cke:style' );
+
                         // Call the browser to help us fixing a possibly invalid HTML
                         // structure.
                         var div = document.createElement( 'div' );
                         div.innerHTML = data;
+                        data = div.innerHTML;
 
+                        if ( CKEDITOR.env.ie )
+                                data = data.replace( unprotectStyleTagsRegex, '$1style' );
+
                         // Now use our parser to make further fixes to the structure, as
                         // well as apply the filter.
-                        var fragment = CKEDITOR.htmlParser.fragment.fromHtml( div.innerHTML, fixForBody ),
+                        var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),
                                 writer = new CKEDITOR.htmlParser.basicWriter();
 
                         fragment.writeHtml( writer, this.dataFilter );