JQuery $ .ajaxSend（）无法在Firefox（33.0）中运行

Question

我有：

..............
$(document)
   .ajaxSend(function () {
   alert('test'); //for testing in FF
      switch (flag_mask) {
       case 0:
              mask_find_way.hide();
              mask_create_way.hide();
              mask_load.show();
              break;
       case 1:
              mask_load.hide();
              mask_create_way.hide();
              mask_find_way.show();
              break;
       case 2:
              mask_find_way.hide();
              mask_load.hide();
              mask_create_way.show();
              break;
 }
 }).ajaxStop(function () {
   mask_load.hide();
   mask_find_way.hide();
   mask_create_way.hide();
 });
..............

我尝试使用jquery 1.8.3,1.11.1,2.1.1和$ .ajaxSend（）只能在FF中工作（警报不能正常工作）？

Answer 1

工作很好：

  function preload_mask() {
     $(document)
        .ajaxSend(function () {
          switch (flag_mask) {
                case 0:
                       mask_find_way.hide();
                       mask_create_way.hide();
                       mask_load.show();
                       break;
                case 1:
                       mask_load.hide();
                       mask_create_way.hide();
                       mask_find_way.show();
                       break;
                case 2:
                       mask_find_way.hide();
                       mask_load.hide();
                       mask_create_way.show();
                       break;
          }
        }).ajaxStop(function () {
          mask_load.hide();
          mask_find_way.hide();
          mask_create_way.hide();
        });
  }
  $(window).load(function() {
      preload_mask();
  });