Ticket #19357: 19357.patch

wp-admin/includes/template.php

@@ -1735 +1735 @@
                         if ( ! options )
                                 return;
 
+                        if ( ! $('<?php echo $selector; ?>').is(':visible') )
+                                return;
+
                         options = $.extend( options, {
                                 close: function() {
                                         $.post( ajaxurl, {