Ticket #4230: 4230.patch

_source/core/_bootstrap.js

@@ -22 +22 @@
         hcDetect.appendTo( CKEDITOR.document.getHead() );
 
         // Update CKEDITOR.env.
-        if ( ( CKEDITOR.env.hc = ( hcDetect.getComputedStyle( 'background-image' ) == 'none' ) ) )
+        // Catch exception needed sometimes for FF. (#4230)
+        try
+        {
+                CKEDITOR.env.hc = ( hcDetect.getComputedStyle( 'background-image' ) == 'none' );
+        }
+        catch (e)
+        {
+                CKEDITOR.env.hc = false;
+        }
+        if ( CKEDITOR.env.hc )
                 CKEDITOR.env.cssClass += ' cke_hc';
 
         hcDetect.remove();

CHANGES.html

@@ -245 +245 @@
                         copy and paste Flash content among different editor instances.</li>
                 <li><a href="http://dev.fckeditor.net/ticket/4193">#4193</a> : Automatic font color produced empty span on Firefox 3.5.</li>
                 <li><a href="http://dev.fckeditor.net/ticket/4186">#4186</a> : [FF] Fixed First open float panel cause host page scrollbar blinking.</li>
+                <li><a href="http://dev.fckeditor.net/ticket/4230">#4230</a> : HC detection caused js error.</li>
         </ul>
         <h3>
                 CKEditor 3.0 RC</h3>