问检查页面上的GET/POST请求

EN

(function() {
  'use strict';
  var oldXHR, stateChangeHandler, prop;

  oldXHR = window.XMLHttpRequest;

  stateChangeHandler = function (evt) {
    switch (this.readyState) {
      case oldXHR.OPENED:
        console.log('Request was made', this, evt);
        break;
      case oldXHR.DONE:
        console.log('Request finished', this, evt);
        break;
    }
  };

  function newXHR() {
    var xhr = new oldXHR();
    xhr.addEventListener('readystatechange', stateChangeHandler);
    return xhr;
  }

  // Copy original states and toString
  for (prop in oldXHR)
    newXHR[prop] = oldXHR[prop];

  window.XMLHttpRequest = newXHR;
})();