我回答了类似的问题问题在这里： https://***.com/a/48445360/1398908

As I answered a similar question here: https://***.com/a/48445360/1398908

更好的解决方案是使用这样的自定义xhr对象提供jQuery的ajax：

A better solution is to supply jQuery's ajax with a custom xhr object like this:

var xhr = new XMLHttpRequest();

$.ajax({
    url: '/url',
    type: 'post',
    data: '...',
    xhr: function() {
         return xhr;
    }
});

然后您可以在任何回调中访问当前网址

Then you can access the current URL in any callback

success: function () {
    console.log(xhr.responseURL);
}