Ticket #11436: 11436.3.patch

wp-includes/class-oembed.php

@@ -247 +247 @@
 
                         case 'video':
                         case 'rich':
-                                $return = ( !empty($data->html) ) ? $data->html : false;
+                                $return = ( empty($data->html) ) ? false : $data->html;
+                                if ( $return && is_admin_bar_showing() && false === strpos( $return, 'wmode' ) )
+                                        $return = str_replace( '</param><embed', '</param><param name="wmode" value="opaque"></param><embed wmode="opaque"', $return );
                                 break;
 
                         case 'link':