fix

@@ -813,13 +813,12 @@ window.fetchReturn = fetchReturn;
     $.ajax({
         type: 'GET',
         url: '/product/index/isfav',
-        dataType: 'html',
         data: {
             brandId: $('#brand-favour').data('id')
         }
     }).then(function(result) {
         if (result.code === 200) {
-            $('#brand-favour').toggleClass('coled');
+            $('#brand-favour').addClass('coled');
         }
     });