Ticket #4514: 4514_2.patch

_source/plugins/wysiwygarea/plugin.js

@@ -640 +640 @@
                                 });
                 }
         });
+
+        // Fixing Firefox 'Back-Forward Cache' break design mode. (#4514)
+        if( CKEDITOR.env.gecko )
+        {
+                var topBody = new CKEDITOR.dom.element( window.top.document.body );
+                topBody.setAttribute( 'onpageshow', topBody.getAttribute( 'onpageshow' ) 
+                                + ';event.persisted && CKEDITOR.tools.callFunction(' +
+                                CKEDITOR.tools.addFunction( function()
+                                {
+                                        var allInstances = CKEDITOR.instances,
+                                                editor,
+                                                doc;
+                                        for( var i in allInstances )
+                                        {
+                                                editor = allInstances[ i ];
+                                                doc = editor.document;
+                                                if( doc )
+                                                {
+                                                        doc.$.designMode = 'off';
+                                                        doc.$.designMode = 'on';
+                                                }
+                                        }
+                                } ) + ')' );
+        }
 })();
 
 /**