Index: /CKEditor/trunk/_source/themes/default/theme.js
===================================================================
--- /CKEditor/trunk/_source/themes/default/theme.js	(revision 7231)
+++ /CKEditor/trunk/_source/themes/default/theme.js	(revision 7232)
@@ -228,6 +228,4 @@
 							'<div id="%bc#" class="%bc"></div>' +
 							'<div id="%br#" class="%br"></div>' +
-							// IFrame shim for dialog that masks activeX in IE. (#7619)
-							( CKEDITOR.env.ie && !CKEDITOR.env.ie6Compat? '<iframe class="cke_iframe_shim" frameborder="0" tabindex="-1" src="javascript:void(0)"></iframe>' : '' ),
 							'</td></tr>' +
 						'</table>',
@@ -244,4 +242,18 @@
 				title = body.getChild( 0 ),
 				close = body.getChild( 1 );
+
+			// IFrame shim for dialog that masks activeX in IE. (#7619)
+			if ( CKEDITOR.env.ie && !CKEDITOR.env.ie6Compat )
+			{
+				var isCustomDomain = CKEDITOR.env.isCustomDomain(),
+					src = 'javascript:void(function(){' + encodeURIComponent( 'document.open();' + ( isCustomDomain ? ( 'document.domain="' + document.domain + '";' ) : '' ) + 'document.close();' ) + '}())',
+					iframe = CKEDITOR.dom.element.createFromHtml( '<iframe' +
+  							' frameBorder="0"' +
+							' class="cke_iframe_shim"' +
+  							' src="' + src + '"' +
+							' tabIndex="-1"' +
+  							'></iframe>' );
+				iframe.appendTo( body.getParent() );
+			}
 
 			// Make the Title and Close Button unselectable.