Ticket #35501: 35501.patch

src/wp-includes/js/wp-lists.js

@@ -160 +160 @@
          * @return {boolean}
          */
         ajaxDel: function( e, s ) {
+                // Return if there is already an AJAX request in progress
+                if ( wpList.xhr && wpList.xhr.readyState !== 4 )
+                        return false;
+
                 e = $(e);
                 s = s || {};
                 var list = this, data = wpList.parseData(e,'delete'), element, res, rres;
@@ -225 +229 @@
                         }
                 };
 
-                $.ajax( s );
+                wpList.xhr = $.ajax( s );
                 return false;
         },
 
         ajaxDim: function( e, s ) {
+                // Return if there is already an AJAX request in progress
+                if ( wpList.xhr && wpList.xhr.readyState !== 4 )
+                        return false;
+
                 if ( $(e).parent().css('display') == 'none' ) // Prevent hidden links from being clicked by hotkeys
                         return false;
 
@@ -326 +334 @@
                         }
                 };
 
-                $.ajax( s );
+                wpList.xhr = $.ajax( s );
                 return false;
         },