ajax 异步请求返回只刷新一次页面

success:function (res) {
     if (res == "ok") {
               //    $('#dg').bootstrapTable(('refresh'));
               if (location.href.indexOf("#reloaded") == -1) {
                   location.href = location.href + "#reloaded";
                   location.reload();
               }
               
           }
}