js拦截所有请求_js 拦截请求

function listen() {
   
  var origin = {
   
    open: XMLHttpRequest.prototype.open,
    send: XMLHttpRequest.prototype.send
  }

  XMLHttpRequest.prototype.open = function(a, b) {
   
    // console.log('open');
    // this.addEventListener('loadend', onReadyStateChangeReplacement);

    this.addEventListener('load', replaceFn)
    // this.addEventListener('readystatechange', replaceFn);
    origin.open.apply(this, arguments)
  }
  XMLHttpRequest.prototype.send = function(a, b) {
   
    origin.send.apply(this, arguments)
  }

  function replaceFn(obj) {
   
    // console.log(obj);
    
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25