Index: javascript/media-add_from_url.js
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/media/javascript/media-add_from_url.js,v
retrieving revision 1.3
diff -u -p -r1.3 media-add_from_url.js
--- javascript/media-add_from_url.js	2 Jun 2010 12:12:09 -0000	1.3
+++ javascript/media-add_from_url.js	27 Aug 2010 23:04:33 -0000
@@ -17,8 +17,10 @@ Drupal.behaviors.mediaAddFromURLPreview 
         $preset = $(this);
         if ($preset.val()) {
           $.getJSON(Drupal.settings.media.add_from_url_preview + '?url=' + $preset.val(), function (data) {
-            // @todo: Check for errors.
-            $('#media-add-from-url-preview').html(data.preview);
+            // @todo: Perform better error checking.
+            if (data && data.preview) {
+              $('#media-add-from-url-preview').html(data.preview);
+            }
           });
         }
       });