Index: _source/plugins/wysiwygarea/plugin.js
===================================================================
--- _source/plugins/wysiwygarea/plugin.js	(revision 4965)
+++ _source/plugins/wysiwygarea/plugin.js	(working copy)
@@ -340,7 +340,7 @@
 					// The script that launches the bootstrap logic on 'domReady', so the document
 					// is fully editable even before the editing iframe is fully loaded (#4455).
 					var activationScript =
-						'<script id="cke_actscrpt" type="text/javascript">' +
+						'<script id="cke_actscrpt" type="text/javascript" cke_temp="1">' +
 							'window.parent.CKEDITOR._["contentDomReady' + editor.name + '"]( window );' +
 						'</script>';