全局拦截各种http请求

 functionhookAJAX() {
    XMLHttpRequest.prototype.nativeOpen =XMLHttpRequest.prototype.open;
    var customizeOpen = function(method, url, async, user, password) {
      //do something
      this.nativeOpen(method, url, async, user, password);
    };
    XMLHttpRequest.prototype.open =customizeOpen;
  }
  /**
   *全局拦截Image的图片请求添加token
   *
   */
  functionhookImg() {
    const property = Object.getOwnPropertyDescriptor(Image.prototype, 'src');
    const nativeSet =property.set;
    functioncustomiseSrcSet(url) {
      //do something
      nativeSet.call(this, url);
    }
    Object.defineProperty(Image.prototype, 'src', {
      set: customiseSrcSet,
    });
  }
  /**
   * 拦截全局open的url添加token
   *
   */
  functionhookOpen() {
    const nativeOpen =window.open;
    window.open = function(url) {
      //do something
      nativeOpen.call(this, url);
    };
  }
  functionhookFetch() {
    var fet = Object.getOwnPropertyDescriptor(window, 'fetch')
    Object.defineProperty(window, 'fetch', {
      value: function(a, b, c) {
        //do something
        return fet.value.apply(this, args)
      }
    })
  }