commit 881fbd8b60349890fbdb5b3076f552ece25f07e2
Author: Joel Pittet <joel@pittet.ca>
Date:   Tue Jan 28 10:50:49 2014 -0800

    4

diff --git a/modules/media_wysiwyg/wysiwyg_plugins/media_ckeditor/library.js b/modules/media_wysiwyg/wysiwyg_plugins/media_ckeditor/library.js
index 3696105..9f24dbc 100644
--- a/modules/media_wysiwyg/wysiwyg_plugins/media_ckeditor/library.js
+++ b/modules/media_wysiwyg/wysiwyg_plugins/media_ckeditor/library.js
@@ -70,7 +70,7 @@
       ckeditorInstance.insertElement(editorElement);
 
       // Initialize widget on our html if possible.
-      if (parseFloat(CKEDITOR.version) >= 4.3 && typeof(CKEDITOR.plugins.registered.widget) != 'undefined') {
+      if (parseFloat(CKEDITOR.version) >= 4.3 && hasWidgetSupport) {
         ckeditorInstance.widgets.initOn( editorElement, 'mediabox' );
       }
     },