diff --git a/README.md b/README.md
index 64e7a54..72a4b0c 100755
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ ajax-hook是用于拦截浏览器 XMLHttpRequest 对象的轻量库，它可以
 
 ## 更新记录
 
-2.1.2版本已发布，2.x和1.x最大的区别是添加了`proxy`方法且同时支持TypeScript，详请见[change list](./change-list.md) 。
+2.1.3已发布，2.x和1.x最大的区别是添加了`proxy`方法且同时支持TypeScript，详请见[change list](./change-list.md) 。
 
 ## 使用
 
@@ -18,7 +18,7 @@ ajax-hook是用于拦截浏览器 XMLHttpRequest 对象的轻量库，它可以
 - CDN引入
 
   ```html
-  <script src="https://unpkg.com/ajax-hook@2.1.2/dist/ajaxhook.min.js"></script>
+  <script src="https://unpkg.com/ajax-hook@2.1.3/dist/ajaxhook.min.js"></script>
   ```
 
   引入后会有一个名为"ah"（ajax hook）的全局对象，通过它可以调用ajax-hook的API，如`ah.proxy(hooks)`
diff --git a/dist/ajaxhook.core.min.js.map b/dist/ajaxhook.core.min.js.map
index 5d543cf..2dfcd28 100644
--- a/dist/ajaxhook.core.min.js.map
+++ b/dist/ajaxhook.core.min.js.map
@@ -1 +1 @@
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};\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(__webpack_require__.s = 2);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nexports.configEvent = configEvent;\nexports.hook = hook;\nexports.unHook = unHook;\n/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\";\n\nvar events = exports.events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nfunction configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) {\n    e[attr] = event[attr];\n  } // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy;\n  return e;\n}\n\nfunction hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest;\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr]();\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key = 'on' + events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = _typeof(xhr[attr]); // May cause exception on some browser\n      } catch (e) {}\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        });\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that;\n    };\n    this.xhr = xhr;\n  };\n\n  Object.assign(win.XMLHttpRequest, { UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4 });\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"];\n      return attrGetterHook && attrGetterHook(v, this) || v;\n    };\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that);\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e);\n          ret || v.call(that, e);\n        };\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v;\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {}\n      }\n    };\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments);\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr);\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    };\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nfunction unHook(win) {\n  win = win || window;\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n/***/ }),\n/* 1 */,\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.ah = undefined;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar ah = exports.ah = {\n  hook: _xhrHook.hook,\n  unHook: _xhrHook.unHook\n}; /*\n    * author: wendux\n    * email: 824783146@qq.com\n    * source code: https://github.com/wendux/Ajax-hook\n    */\n\n/***/ })\n/******/ ])));\n\n\n// WEBPACK FOOTER //\n// ajaxhook.core.min.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// identity function for calling harmony imports with the correct context\n \t__webpack_require__.i = function(value) { return value; };\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 2);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 234a00c28fcb3f56e5b3","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\"\n\nexport var events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nexport function configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) e[attr] = event[attr];\n  // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy\n  return e;\n}\n\nexport function hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr];\n\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key='on'+events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = typeof xhr[attr] // May cause exception on some browser\n      } catch (e) {\n      }\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        })\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that\n    }\n    this.xhr = xhr;\n  }\n\n  Object.assign(win.XMLHttpRequest, {UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4});\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"]\n      return attrGetterHook && attrGetterHook(v, this) || v\n    }\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that)\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e)\n          ret || v.call(that, e);\n        }\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {\n        }\n      }\n    }\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments)\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr)\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    }\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nexport function unHook(win) {\n  win = win || window\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-hook.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nimport {hook, unHook} from \"./xhr-hook\";\n\nexport var ah = {\n    hook,\n    unHook,\n};\n\n\n\n// WEBPACK FOOTER //\n// ./src/cdn-core.js"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/ajaxhook.js b/dist/ajaxhook.js
index 36979a2..f5a53b4 100644
--- a/dist/ajaxhook.js
+++ b/dist/ajaxhook.js
@@ -426,7 +426,7 @@ function Proxy(proxy, win) {
     setRequestHeader: function setRequestHeader(args, xhr) {
       // Collect request headers
       xhr.config.headers[args[0].toLowerCase()] = args[1];
-      return true;
+      if (onRequest) return true;
     },
     addEventListener: function addEventListener(args, xhr) {
       var _this = this;
diff --git a/dist/ajaxhook.min.js b/dist/ajaxhook.min.js
index 1a9d803..aff0046 100644
--- a/dist/ajaxhook.min.js
+++ b/dist/ajaxhook.min.js
@@ -1,2 +1,2 @@
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() {\n      return that;\n    };\n    this.xhr = xhr;\n  };\n\n  Object.assign(win.XMLHttpRequest, { UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4 });\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"];\n      return attrGetterHook && attrGetterHook(v, this) || v;\n    };\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that);\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e);\n          ret || v.call(that, e);\n        };\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v;\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {}\n      }\n    };\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments);\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr);\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    };\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nfunction unHook(win) {\n  win = win || window;\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.proxy = proxy;\nexports.unProxy = unProxy;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar eventLoad = _xhrHook.events[0],\n    eventLoadEnd = _xhrHook.events[1],\n    eventTimeout = _xhrHook.events[2],\n    eventError = _xhrHook.events[3],\n    eventReadyStateChange = _xhrHook.events[4],\n    eventAbort = _xhrHook.events[5]; /*\n                                      * author: wendux\n                                      * email: 824783146@qq.com\n                                      * source code: https://github.com/wendux/Ajax-hook\n                                      */\n\nvar singleton,\n    prototype = 'prototype';\n\nfunction proxy(proxy, win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy, win);\n}\n\nfunction unProxy(win) {\n  singleton = null;\n  (0, _xhrHook.unHook)(win);\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = (0, _xhrHook.configEvent)({ type: name }, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof Event === 'function') {\n    evt = new Event(name, { bubbles: false });\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next;\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n      onResponse = proxy.onResponse,\n      onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response || xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = { config: xhr.config, error: error, type: errorType };\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    };\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return (0, _xhrHook.hook)({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function onreadystatechange(xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = { headers: {} };\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function send(args, xhr) {\n      var config = xhr.config;\n      config.withCredentials = xhr.withCredentials;\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function req() {\n          onRequest(config, new RequestHandler(xhr));\n        };\n        config.async === false ? req() : setTimeout(req);\n        return true;\n      }\n    },\n    setRequestHeader: function setRequestHeader(args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      return true;\n    },\n    addEventListener: function addEventListener(args, xhr) {\n      var _this = this;\n      if (_xhrHook.events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = (0, _xhrHook.configEvent)(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function getAllResponseHeaders(_, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        var header = \"\";\n        for (var key in headers) {\n          header += key + ': ' + headers[key] + '\\r\\n';\n        }\n        return header;\n      }\n    },\n    getResponseHeader: function getResponseHeader(args, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        return headers[(args[0] || '').toLowerCase()];\n      }\n    }\n  }, win);\n}\n\n/***/ }),\n/* 2 */,\n/* 3 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.ah = undefined;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar _xhrProxy = __webpack_require__(1);\n\n// ah(ajax hook)\n/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nvar ah = exports.ah = {\n  proxy: _xhrProxy.proxy,\n  unProxy: _xhrProxy.unProxy,\n  hook: _xhrHook.hook,\n  unHook: _xhrHook.unHook\n};\n\n/***/ })\n/******/ ])));\n\n\n// WEBPACK FOOTER //\n// ajaxhook.min.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// identity function for calling harmony imports with the correct context\n \t__webpack_require__.i = function(value) { return value; };\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 3);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 693b109ae617fd2c1d25","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\"\n\nexport var events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nexport function configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) e[attr] = event[attr];\n  // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy\n  return e;\n}\n\nexport function hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr];\n\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key='on'+events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = typeof xhr[attr] // May cause exception on some browser\n      } catch (e) {\n      }\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        })\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that\n    }\n    this.xhr = xhr;\n  }\n\n  Object.assign(win.XMLHttpRequest, {UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4});\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"]\n      return attrGetterHook && attrGetterHook(v, this) || v\n    }\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that)\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e)\n          ret || v.call(that, e);\n        }\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {\n        }\n      }\n    }\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments)\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr)\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    }\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nexport function unHook(win) {\n  win = win || window\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-hook.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nimport {hook, unHook, configEvent, events} from \"./xhr-hook\";\n\nvar eventLoad = events[0],\n  eventLoadEnd = events[1],\n  eventTimeout = events[2],\n  eventError = events[3],\n  eventReadyStateChange = events[4],\n  eventAbort = events[5];\n\n\nvar singleton,\n  prototype = 'prototype';\n\n\nexport function proxy(proxy,win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy,win);\n}\n\nexport function unProxy(win) {\n  singleton = null\n  unHook(win)\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = configEvent({type: name}, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof(Event) === 'function') {\n    evt = new Event(name, {bubbles: false});\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n    onResponse = proxy.onResponse,\n    onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response||xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = {config: xhr.config, error: error, type: errorType};\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    }\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return hook({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function (xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = {headers: {}};\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function (args, xhr) {\n      var config = xhr.config\n      config.withCredentials = xhr.withCredentials\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function () {\n          onRequest(config, new RequestHandler(xhr));\n        }\n        config.async === false ? req() : setTimeout(req)\n        return true;\n      }\n    },\n    setRequestHeader: function (args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      return true;\n    },\n    addEventListener: function (args, xhr) {\n      var _this = this;\n      if (events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = configEvent(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function (_, xhr) {\n      var 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\ No newline at end of file
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We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr]();\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key = 'on' + events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = _typeof(xhr[attr]); // May cause exception on some browser\n      } catch (e) {}\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        });\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that;\n    };\n    this.xhr = xhr;\n  };\n\n  Object.assign(win.XMLHttpRequest, { UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4 });\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"];\n      return attrGetterHook && attrGetterHook(v, this) || v;\n    };\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that);\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e);\n          ret || v.call(that, e);\n        };\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v;\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {}\n      }\n    };\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments);\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr);\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    };\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nfunction unHook(win) {\n  win = win || window;\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.proxy = proxy;\nexports.unProxy = unProxy;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar eventLoad = _xhrHook.events[0],\n    eventLoadEnd = _xhrHook.events[1],\n    eventTimeout = _xhrHook.events[2],\n    eventError = _xhrHook.events[3],\n    eventReadyStateChange = _xhrHook.events[4],\n    eventAbort = _xhrHook.events[5]; /*\n                                      * author: wendux\n                                      * email: 824783146@qq.com\n                                      * source code: https://github.com/wendux/Ajax-hook\n                                      */\n\nvar singleton,\n    prototype = 'prototype';\n\nfunction proxy(proxy, win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy, win);\n}\n\nfunction unProxy(win) {\n  singleton = null;\n  (0, _xhrHook.unHook)(win);\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = (0, _xhrHook.configEvent)({ type: name }, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof Event === 'function') {\n    evt = new Event(name, { bubbles: false });\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next;\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n      onResponse = proxy.onResponse,\n      onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response || xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = { config: xhr.config, error: error, type: errorType };\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    };\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return (0, _xhrHook.hook)({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function onreadystatechange(xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = { headers: {} };\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function send(args, xhr) {\n      var config = xhr.config;\n      config.withCredentials = xhr.withCredentials;\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function req() {\n          onRequest(config, new RequestHandler(xhr));\n        };\n        config.async === false ? req() : setTimeout(req);\n        return true;\n      }\n    },\n    setRequestHeader: function setRequestHeader(args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      if (onRequest) return true;\n    },\n    addEventListener: function addEventListener(args, xhr) {\n      var _this = this;\n      if (_xhrHook.events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = (0, _xhrHook.configEvent)(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function getAllResponseHeaders(_, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        var header = \"\";\n        for (var key in headers) {\n          header += key + ': ' + headers[key] + '\\r\\n';\n        }\n        return header;\n      }\n    },\n    getResponseHeader: function getResponseHeader(args, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        return headers[(args[0] || '').toLowerCase()];\n      }\n    }\n  }, win);\n}\n\n/***/ }),\n/* 2 */,\n/* 3 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.ah = undefined;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar _xhrProxy = __webpack_require__(1);\n\n// ah(ajax hook)\n/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nvar ah = exports.ah = {\n  proxy: _xhrProxy.proxy,\n  unProxy: _xhrProxy.unProxy,\n  hook: _xhrHook.hook,\n  unHook: _xhrHook.unHook\n};\n\n/***/ })\n/******/ ])));\n\n\n// WEBPACK FOOTER //\n// ajaxhook.min.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// identity function for calling harmony imports with the correct context\n \t__webpack_require__.i = function(value) { return value; };\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 3);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 234a00c28fcb3f56e5b3","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\"\n\nexport var events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nexport function configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) e[attr] = event[attr];\n  // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy\n  return e;\n}\n\nexport function hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr];\n\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key='on'+events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = typeof xhr[attr] // May cause exception on some browser\n      } catch (e) {\n      }\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        })\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that\n    }\n    this.xhr = xhr;\n  }\n\n  Object.assign(win.XMLHttpRequest, {UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4});\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"]\n      return attrGetterHook && attrGetterHook(v, this) || v\n    }\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that)\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e)\n          ret || v.call(that, e);\n        }\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {\n        }\n      }\n    }\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments)\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr)\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    }\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nexport function unHook(win) {\n  win = win || window\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-hook.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nimport {hook, unHook, configEvent, events} from \"./xhr-hook\";\n\nvar eventLoad = events[0],\n  eventLoadEnd = events[1],\n  eventTimeout = events[2],\n  eventError = events[3],\n  eventReadyStateChange = events[4],\n  eventAbort = events[5];\n\n\nvar singleton,\n  prototype = 'prototype';\n\n\nexport function proxy(proxy, win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy, win);\n}\n\nexport function unProxy(win) {\n  singleton = null\n  unHook(win)\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = configEvent({type: name}, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof(Event) === 'function') {\n    evt = new Event(name, {bubbles: false});\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n    onResponse = proxy.onResponse,\n    onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response || xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = {config: xhr.config, error: error, type: errorType};\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    }\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return hook({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function (xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = {headers: {}};\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function (args, xhr) {\n      var config = xhr.config\n      config.withCredentials = xhr.withCredentials\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function () {\n          onRequest(config, new RequestHandler(xhr));\n        }\n        config.async === false ? req() : setTimeout(req)\n        return true;\n      }\n    },\n    setRequestHeader: function (args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      if (onRequest) return true;\n    },\n    addEventListener: function (args, xhr) {\n      var _this = this;\n      if (events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = configEvent(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function (_, xhr) {\n      var headers = xhr.resHeader\n      if (headers) {\n        var header = \"\";\n        for (var key in headers) {\n          header += key + ': ' + headers[key] + '\\r\\n';\n        }\n        return header;\n      }\n    },\n    getResponseHeader: function (args, xhr) {\n      var headers = xhr.resHeader\n      if (headers) {\n        return headers[(args[0] || '').toLowerCase()];\n      }\n    }\n  }, win);\n}\n\n\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-proxy.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nimport {hook, unHook} from \"./xhr-hook\";\nimport {proxy, unProxy} from \"./xhr-proxy\";\n// ah(ajax hook)\nexport var ah = {\n    proxy,\n    unProxy,\n    hook,\n    unHook,\n};\n\n\n\n// WEBPACK FOOTER //\n// ./src/cdn.js"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/ajaxhook.umd.js b/dist/ajaxhook.umd.js
index 9838fb8..3c8ac6f 100644
--- a/dist/ajaxhook.umd.js
+++ b/dist/ajaxhook.umd.js
@@ -436,7 +436,7 @@ function Proxy(proxy, win) {
     setRequestHeader: function setRequestHeader(args, xhr) {
       // Collect request headers
       xhr.config.headers[args[0].toLowerCase()] = args[1];
-      return true;
+      if (onRequest) return true;
     },
     addEventListener: function addEventListener(args, xhr) {
       var _this = this;
diff --git a/dist/ajaxhook.umd.min.js b/dist/ajaxhook.umd.min.js
index 274e6d3..fe59f80 100644
--- a/dist/ajaxhook.umd.min.js
+++ b/dist/ajaxhook.umd.min.js
@@ -1,2 +1,2 @@
-!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var n=t();for(var r in n)("object"==typeof exports?exports:e)[r]=n[r]}}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var n={};return t.m=e,t.c=n,t.i=function(e){return e},t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="",t(t.s=2)}([function(e,t,n){"use strict";function r(e,t){var n={};for(var r in e)n[r]=e[r];return n.target=n.currentTarget=t,n}function o(e,t){function n(t){return function(){var n=this.hasOwnProperty(t+"_")?this[t+"_"]:this.xhr[t],r=(e[t]||{}).getter;return r&&r(n,this)||n}}function o(t){return function(n){var o=this.xhr,i=this,u=e[t];if("on"===t.substring(0,2))i[t+"_"]=n,o[t]=function(u){u=r(u,i),e[t]&&e[t].call(i,o,u)||n.call(i,u)};else{var s=(u||{}).setter;n=s&&s(n,i)||n,this[t+"_"]=n;try{o[t]=n}catch(e){}}}}function i(t){return function(){var n=[].slice.call(arguments);if(e[t]){var r=e[t].call(this,n,this.xhr);if(r)return r}return this.xhr[t].apply(this.xhr,n)}}return t=t||window,t[s]=t[s]||t.XMLHttpRequest,t.XMLHttpRequest=function(){for(var e=new t[s],r=0;r<a.length;++r){var c="on"+a[r];void 0===e[c]&&(e[c]=null)}for(var f in e){var d="";try{d=u(e[f])}catch(e){}"function"===d?this[f]=i(f):Object.defineProperty(this,f,{get:n(f),set:o(f),enumerable:!0})}var h=this;e.getProxy=function(){return h},this.xhr=e},Object.assign(t.XMLHttpRequest,{UNSENT:0,OPENED:1,HEADERS_RECEIVED:2,LOADING:3,DONE:4}),t[s]}function i(e){e=e||window,e[s]&&(e.XMLHttpRequest=e[s]),e[s]=void 0}Object.defineProperty(t,"__esModule",{value:!0});var u="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e};t.configEvent=r,t.hook=o,t.unHook=i;var s="_rxhr",a=t.events=["load","loadend","timeout","error","readystatechange","abort"]},function(e,t,n){"use strict";function r(e,t){if(d)throw"Proxy already exists";return d=new f(e,t)}function o(e){d=null,(0,h.unHook)(e)}function i(e){return e.replace(/^\s+|\s+$/g,"")}function u(e){return e.watcher||(e.watcher=document.createElement("a"))}function s(e,t){var n=e.getProxy(),r="on"+t+"_",o=(0,h.configEvent)({type:t},n);n[r]&&n[r](o);var i;"function"==typeof Event?i=new Event(t,{bubbles:!1}):(i=document.createEvent("Event"),i.initEvent(t,!1,!0)),u(e).dispatchEvent(i)}function a(e){this.xhr=e,this.xhrProxy=e.getProxy()}function c(e){function t(e){a.call(this,e)}return t[g]=Object.create(a[g]),t[g].next=e,t}function f(e,t){function n(e,t){var n=new w(e),r={response:t.response||t.responseText,status:t.status,statusText:t.statusText,config:e.config,headers:e.resHeader||e.getAllResponseHeaders().split("\r\n").reduce(function(e,t){if(""===t)return e;var n=t.split(":");return e[n.shift()]=i(n.join(":")),e},{})};if(!d)return n.resolve(r);d(r,n)}function r(e,t,n,r){var o=new E(e);n={config:e.config,error:n,type:r},l?l(n,o):o.next(n)}function o(){return!0}function a(e){return function(t,n){return r(t,this,n,e),!0}}function c(e,t){return 4===e.readyState&&0!==e.status?n(e,t):4!==e.readyState&&s(e,x),!0}var f=e.onRequest,d=e.onResponse,l=e.onError;return(0,h.hook)({onload:o,onloadend:o,onerror:a(y),ontimeout:a(p),onabort:a(b),onreadystatechange:function(e){return c(e,this)},open:function(e,t){var n=this,r=t.config={headers:{}};r.method=e[0],r.url=e[1],r.async=e[2],r.user=e[3],r.password=e[4],r.xhr=t;var o="on"+x;if(t[o]||(t[o]=function(){return c(t,n)}),f)return!0},send:function(e,t){var n=t.config;if(n.withCredentials=t.withCredentials,n.body=e[0],f){var r=function(){f(n,new m(t))};return!1===n.async?r():setTimeout(r),!0}},setRequestHeader:function(e,t){return t.config.headers[e[0].toLowerCase()]=e[1],!0},addEventListener:function(e,t){var n=this;if(-1!==h.events.indexOf(e[0])){var r=e[1];return u(t).addEventListener(e[0],function(t){var o=(0,h.configEvent)(t,n);o.type=e[0],o.isTrusted=!0,r.call(n,o)}),!0}},getAllResponseHeaders:function(e,t){var n=t.resHeader;if(n){var r="";for(var o in n)r+=o+": "+n[o]+"\r\n";return r}},getResponseHeader:function(e,t){var n=t.resHeader;if(n)return n[(e[0]||"").toLowerCase()]}},t)}Object.defineProperty(t,"__esModule",{value:!0}),t.proxy=r,t.unProxy=o;var d,h=n(0),l=h.events[0],v=h.events[1],p=h.events[2],y=h.events[3],x=h.events[4],b=h.events[5],g="prototype";a[g]=Object.create({resolve:function(e){var t=this.xhrProxy,n=this.xhr;t.readyState=4,n.resHeader=e.headers,t.response=t.responseText=e.response,t.statusText=e.statusText,t.status=e.status,s(n,x),s(n,l),s(n,v)},reject:function(e){this.xhrProxy.status=0,s(this.xhr,e.type),s(this.xhr,v)}});var m=c(function(e){var t=this.xhr;e=e||t.config,t.withCredentials=e.withCredentials,t.open(e.method,e.url,!1!==e.async,e.user,e.password);for(var n in e.headers)t.setRequestHeader(n,e.headers[n]);t.send(e.body)}),w=c(function(e){this.resolve(e)}),E=c(function(e){this.reject(e)})},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=n(0);Object.defineProperty(t,"hook",{enumerable:!0,get:function(){return r.hook}}),Object.defineProperty(t,"unHook",{enumerable:!0,get:function(){return r.unHook}});var o=n(1);Object.defineProperty(t,"proxy",{enumerable:!0,get:function(){return o.proxy}}),Object.defineProperty(t,"unProxy",{enumerable:!0,get:function(){return o.unProxy}})}])});
+!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var n=t();for(var r in n)("object"==typeof exports?exports:e)[r]=n[r]}}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var n={};return t.m=e,t.c=n,t.i=function(e){return e},t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="",t(t.s=2)}([function(e,t,n){"use strict";function r(e,t){var n={};for(var r in e)n[r]=e[r];return n.target=n.currentTarget=t,n}function o(e,t){function n(t){return function(){var n=this.hasOwnProperty(t+"_")?this[t+"_"]:this.xhr[t],r=(e[t]||{}).getter;return r&&r(n,this)||n}}function o(t){return function(n){var o=this.xhr,i=this,u=e[t];if("on"===t.substring(0,2))i[t+"_"]=n,o[t]=function(u){u=r(u,i),e[t]&&e[t].call(i,o,u)||n.call(i,u)};else{var s=(u||{}).setter;n=s&&s(n,i)||n,this[t+"_"]=n;try{o[t]=n}catch(e){}}}}function i(t){return function(){var n=[].slice.call(arguments);if(e[t]){var r=e[t].call(this,n,this.xhr);if(r)return r}return this.xhr[t].apply(this.xhr,n)}}return t=t||window,t[s]=t[s]||t.XMLHttpRequest,t.XMLHttpRequest=function(){for(var e=new t[s],r=0;r<a.length;++r){var c="on"+a[r];void 0===e[c]&&(e[c]=null)}for(var f in e){var d="";try{d=u(e[f])}catch(e){}"function"===d?this[f]=i(f):Object.defineProperty(this,f,{get:n(f),set:o(f),enumerable:!0})}var h=this;e.getProxy=function(){return h},this.xhr=e},Object.assign(t.XMLHttpRequest,{UNSENT:0,OPENED:1,HEADERS_RECEIVED:2,LOADING:3,DONE:4}),t[s]}function i(e){e=e||window,e[s]&&(e.XMLHttpRequest=e[s]),e[s]=void 0}Object.defineProperty(t,"__esModule",{value:!0});var u="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e};t.configEvent=r,t.hook=o,t.unHook=i;var s="_rxhr",a=t.events=["load","loadend","timeout","error","readystatechange","abort"]},function(e,t,n){"use strict";function r(e,t){if(d)throw"Proxy already exists";return d=new f(e,t)}function o(e){d=null,(0,h.unHook)(e)}function i(e){return e.replace(/^\s+|\s+$/g,"")}function u(e){return e.watcher||(e.watcher=document.createElement("a"))}function s(e,t){var n=e.getProxy(),r="on"+t+"_",o=(0,h.configEvent)({type:t},n);n[r]&&n[r](o);var i;"function"==typeof Event?i=new Event(t,{bubbles:!1}):(i=document.createEvent("Event"),i.initEvent(t,!1,!0)),u(e).dispatchEvent(i)}function a(e){this.xhr=e,this.xhrProxy=e.getProxy()}function c(e){function t(e){a.call(this,e)}return t[g]=Object.create(a[g]),t[g].next=e,t}function f(e,t){function n(e,t){var n=new w(e),r={response:t.response||t.responseText,status:t.status,statusText:t.statusText,config:e.config,headers:e.resHeader||e.getAllResponseHeaders().split("\r\n").reduce(function(e,t){if(""===t)return e;var n=t.split(":");return e[n.shift()]=i(n.join(":")),e},{})};if(!d)return n.resolve(r);d(r,n)}function r(e,t,n,r){var o=new E(e);n={config:e.config,error:n,type:r},l?l(n,o):o.next(n)}function o(){return!0}function a(e){return function(t,n){return r(t,this,n,e),!0}}function c(e,t){return 4===e.readyState&&0!==e.status?n(e,t):4!==e.readyState&&s(e,x),!0}var f=e.onRequest,d=e.onResponse,l=e.onError;return(0,h.hook)({onload:o,onloadend:o,onerror:a(y),ontimeout:a(p),onabort:a(b),onreadystatechange:function(e){return c(e,this)},open:function(e,t){var n=this,r=t.config={headers:{}};r.method=e[0],r.url=e[1],r.async=e[2],r.user=e[3],r.password=e[4],r.xhr=t;var o="on"+x;if(t[o]||(t[o]=function(){return c(t,n)}),f)return!0},send:function(e,t){var n=t.config;if(n.withCredentials=t.withCredentials,n.body=e[0],f){var r=function(){f(n,new m(t))};return!1===n.async?r():setTimeout(r),!0}},setRequestHeader:function(e,t){if(t.config.headers[e[0].toLowerCase()]=e[1],f)return!0},addEventListener:function(e,t){var n=this;if(-1!==h.events.indexOf(e[0])){var r=e[1];return u(t).addEventListener(e[0],function(t){var o=(0,h.configEvent)(t,n);o.type=e[0],o.isTrusted=!0,r.call(n,o)}),!0}},getAllResponseHeaders:function(e,t){var n=t.resHeader;if(n){var r="";for(var o in n)r+=o+": "+n[o]+"\r\n";return r}},getResponseHeader:function(e,t){var n=t.resHeader;if(n)return n[(e[0]||"").toLowerCase()]}},t)}Object.defineProperty(t,"__esModule",{value:!0}),t.proxy=r,t.unProxy=o;var d,h=n(0),l=h.events[0],v=h.events[1],p=h.events[2],y=h.events[3],x=h.events[4],b=h.events[5],g="prototype";a[g]=Object.create({resolve:function(e){var t=this.xhrProxy,n=this.xhr;t.readyState=4,n.resHeader=e.headers,t.response=t.responseText=e.response,t.statusText=e.statusText,t.status=e.status,s(n,x),s(n,l),s(n,v)},reject:function(e){this.xhrProxy.status=0,s(this.xhr,e.type),s(this.xhr,v)}});var m=c(function(e){var t=this.xhr;e=e||t.config,t.withCredentials=e.withCredentials,t.open(e.method,e.url,!1!==e.async,e.user,e.password);for(var n in e.headers)t.setRequestHeader(n,e.headers[n]);t.send(e.body)}),w=c(function(e){this.resolve(e)}),E=c(function(e){this.reject(e)})},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=n(0);Object.defineProperty(t,"hook",{enumerable:!0,get:function(){return r.hook}}),Object.defineProperty(t,"unHook",{enumerable:!0,get:function(){return r.unHook}});var o=n(1);Object.defineProperty(t,"proxy",{enumerable:!0,get:function(){return o.proxy}}),Object.defineProperty(t,"unProxy",{enumerable:!0,get:function(){return o.unProxy}})}])});
 //# sourceMappingURL=ajaxhook.umd.min.js.map
\ No newline at end of file
diff --git a/dist/ajaxhook.umd.min.js.map b/dist/ajaxhook.umd.min.js.map
index aa989aa..76f9801 100644
--- a/dist/ajaxhook.umd.min.js.map
+++ b/dist/ajaxhook.umd.min.js.map
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typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nexports.configEvent = configEvent;\nexports.hook = hook;\nexports.unHook = unHook;\n/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\";\n\nvar events = exports.events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nfunction configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) {\n    e[attr] = event[attr];\n  } // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy;\n  return e;\n}\n\nfunction hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest;\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr]();\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key = 'on' + events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = _typeof(xhr[attr]); // May cause exception on some browser\n      } catch (e) {}\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        });\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that;\n    };\n    this.xhr = xhr;\n  };\n\n  Object.assign(win.XMLHttpRequest, { UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4 });\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"];\n      return attrGetterHook && attrGetterHook(v, this) || v;\n    };\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that);\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e);\n          ret || v.call(that, e);\n        };\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v;\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {}\n      }\n    };\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments);\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr);\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    };\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nfunction unHook(win) {\n  win = win || window;\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.proxy = proxy;\nexports.unProxy = unProxy;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar eventLoad = _xhrHook.events[0],\n    eventLoadEnd = _xhrHook.events[1],\n    eventTimeout = _xhrHook.events[2],\n    eventError = _xhrHook.events[3],\n    eventReadyStateChange = _xhrHook.events[4],\n    eventAbort = _xhrHook.events[5]; /*\n                                      * author: wendux\n                                      * email: 824783146@qq.com\n                                      * source code: https://github.com/wendux/Ajax-hook\n                                      */\n\nvar singleton,\n    prototype = 'prototype';\n\nfunction proxy(proxy, win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy, win);\n}\n\nfunction unProxy(win) {\n  singleton = null;\n  (0, _xhrHook.unHook)(win);\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = (0, _xhrHook.configEvent)({ type: name }, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof Event === 'function') {\n    evt = new Event(name, { bubbles: false });\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next;\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n      onResponse = proxy.onResponse,\n      onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response || xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = { config: xhr.config, error: error, type: errorType };\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    };\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return (0, _xhrHook.hook)({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function onreadystatechange(xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = { headers: {} };\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function send(args, xhr) {\n      var config = xhr.config;\n      config.withCredentials = xhr.withCredentials;\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function req() {\n          onRequest(config, new RequestHandler(xhr));\n        };\n        config.async === false ? req() : setTimeout(req);\n        return true;\n      }\n    },\n    setRequestHeader: function setRequestHeader(args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      return true;\n    },\n    addEventListener: function addEventListener(args, xhr) {\n      var _this = this;\n      if (_xhrHook.events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = (0, _xhrHook.configEvent)(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function getAllResponseHeaders(_, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        var header = \"\";\n        for (var key in headers) {\n          header += key + ': ' + headers[key] + '\\r\\n';\n        }\n        return header;\n      }\n    },\n    getResponseHeader: function getResponseHeader(args, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        return headers[(args[0] || '').toLowerCase()];\n      }\n    }\n  }, win);\n}\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\n\nvar _xhrHook = __webpack_require__(0);\n\nObject.defineProperty(exports, \"hook\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrHook.hook;\n  }\n});\nObject.defineProperty(exports, \"unHook\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrHook.unHook;\n  }\n});\n\nvar _xhrProxy = __webpack_require__(1);\n\nObject.defineProperty(exports, \"proxy\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrProxy.proxy;\n  }\n});\nObject.defineProperty(exports, \"unProxy\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrProxy.unProxy;\n  }\n});\n\n/***/ })\n/******/ ]);\n});\n\n\n// WEBPACK FOOTER //\n// ajaxhook.umd.min.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\"\n\nexport var events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nexport function configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) e[attr] = event[attr];\n  // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy\n  return e;\n}\n\nexport function hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr];\n\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key='on'+events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = typeof xhr[attr] // May cause exception on some browser\n      } catch (e) {\n      }\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        })\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that\n    }\n    this.xhr = xhr;\n  }\n\n  Object.assign(win.XMLHttpRequest, {UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4});\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"]\n      return attrGetterHook && attrGetterHook(v, this) || v\n    }\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that)\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e)\n          ret || v.call(that, e);\n        }\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {\n        }\n      }\n    }\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments)\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr)\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    }\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nexport function unHook(win) {\n  win = win || window\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-hook.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nimport {hook, unHook, configEvent, events} from \"./xhr-hook\";\n\nvar eventLoad = events[0],\n  eventLoadEnd = events[1],\n  eventTimeout = events[2],\n  eventError = events[3],\n  eventReadyStateChange = events[4],\n  eventAbort = events[5];\n\n\nvar singleton,\n  prototype = 'prototype';\n\n\nexport function proxy(proxy,win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy,win);\n}\n\nexport function unProxy(win) {\n  singleton = null\n  unHook(win)\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = configEvent({type: name}, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof(Event) === 'function') {\n    evt = new Event(name, {bubbles: false});\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n    onResponse = proxy.onResponse,\n    onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response||xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = {config: xhr.config, error: error, type: errorType};\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    }\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return hook({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function (xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = {headers: {}};\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function (args, xhr) {\n      var config = xhr.config\n      config.withCredentials = xhr.withCredentials\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n    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typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nexports.configEvent = configEvent;\nexports.hook = hook;\nexports.unHook = unHook;\n/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\";\n\nvar events = exports.events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nfunction configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) {\n    e[attr] = event[attr];\n  } // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy;\n  return e;\n}\n\nfunction hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest;\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr]();\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key = 'on' + events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = _typeof(xhr[attr]); // May cause exception on some browser\n      } catch (e) {}\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        });\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that;\n    };\n    this.xhr = xhr;\n  };\n\n  Object.assign(win.XMLHttpRequest, { UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4 });\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"];\n      return attrGetterHook && attrGetterHook(v, this) || v;\n    };\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that);\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e);\n          ret || v.call(that, e);\n        };\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v;\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {}\n      }\n    };\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments);\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr);\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    };\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nfunction unHook(win) {\n  win = win || window;\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\nexports.proxy = proxy;\nexports.unProxy = unProxy;\n\nvar _xhrHook = __webpack_require__(0);\n\nvar eventLoad = _xhrHook.events[0],\n    eventLoadEnd = _xhrHook.events[1],\n    eventTimeout = _xhrHook.events[2],\n    eventError = _xhrHook.events[3],\n    eventReadyStateChange = _xhrHook.events[4],\n    eventAbort = _xhrHook.events[5]; /*\n                                      * author: wendux\n                                      * email: 824783146@qq.com\n                                      * source code: https://github.com/wendux/Ajax-hook\n                                      */\n\nvar singleton,\n    prototype = 'prototype';\n\nfunction proxy(proxy, win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy, win);\n}\n\nfunction unProxy(win) {\n  singleton = null;\n  (0, _xhrHook.unHook)(win);\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = (0, _xhrHook.configEvent)({ type: name }, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof Event === 'function') {\n    evt = new Event(name, { bubbles: false });\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next;\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n      onResponse = proxy.onResponse,\n      onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response || xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = { config: xhr.config, error: error, type: errorType };\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    };\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return (0, _xhrHook.hook)({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function onreadystatechange(xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = { headers: {} };\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function send(args, xhr) {\n      var config = xhr.config;\n      config.withCredentials = xhr.withCredentials;\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function req() {\n          onRequest(config, new RequestHandler(xhr));\n        };\n        config.async === false ? req() : setTimeout(req);\n        return true;\n      }\n    },\n    setRequestHeader: function setRequestHeader(args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      if (onRequest) return true;\n    },\n    addEventListener: function addEventListener(args, xhr) {\n      var _this = this;\n      if (_xhrHook.events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = (0, _xhrHook.configEvent)(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function getAllResponseHeaders(_, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        var header = \"\";\n        for (var key in headers) {\n          header += key + ': ' + headers[key] + '\\r\\n';\n        }\n        return header;\n      }\n    },\n    getResponseHeader: function getResponseHeader(args, xhr) {\n      var headers = xhr.resHeader;\n      if (headers) {\n        return headers[(args[0] || '').toLowerCase()];\n      }\n    }\n  }, win);\n}\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\n\nvar _xhrHook = __webpack_require__(0);\n\nObject.defineProperty(exports, \"hook\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrHook.hook;\n  }\n});\nObject.defineProperty(exports, \"unHook\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrHook.unHook;\n  }\n});\n\nvar _xhrProxy = __webpack_require__(1);\n\nObject.defineProperty(exports, \"proxy\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrProxy.proxy;\n  }\n});\nObject.defineProperty(exports, \"unProxy\", {\n  enumerable: true,\n  get: function get() {\n    return _xhrProxy.unProxy;\n  }\n});\n\n/***/ })\n/******/ ]);\n});\n\n\n// WEBPACK FOOTER //\n// ajaxhook.umd.min.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\n// Save original XMLHttpRequest as _rxhr\nvar realXhr = \"_rxhr\"\n\nexport var events = ['load', 'loadend', 'timeout', 'error', 'readystatechange', 'abort'];\n\nexport function configEvent(event, xhrProxy) {\n  var e = {};\n  for (var attr in event) e[attr] = event[attr];\n  // xhrProxy instead\n  e.target = e.currentTarget = xhrProxy\n  return e;\n}\n\nexport function hook(proxy, win) {\n  win = win || window;\n  // Avoid double hookAjax\n  win[realXhr] = win[realXhr] || win.XMLHttpRequest\n\n  win.XMLHttpRequest = function () {\n\n    // We shouldn't hookAjax XMLHttpRequest.prototype because we can't\n    // guarantee that all attributes are on the prototype。\n    // Instead, hooking XMLHttpRequest instance can avoid this problem.\n\n    var xhr = new win[realXhr];\n\n\n    // Generate all callbacks(eg. onload) are enumerable (not undefined).\n    for (var i = 0; i < events.length; ++i) {\n      var key='on'+events[i];\n      if (xhr[key] === undefined) xhr[key] = null;\n    }\n\n    for (var attr in xhr) {\n      var type = \"\";\n      try {\n        type = typeof xhr[attr] // May cause exception on some browser\n      } catch (e) {\n      }\n      if (type === \"function\") {\n        // hookAjax methods of xhr, such as `open`、`send` ...\n        this[attr] = hookFunction(attr);\n      } else {\n        Object.defineProperty(this, attr, {\n          get: getterFactory(attr),\n          set: setterFactory(attr),\n          enumerable: true\n        })\n      }\n    }\n    var that = this;\n    xhr.getProxy = function () {\n      return that\n    }\n    this.xhr = xhr;\n  }\n\n  Object.assign(win.XMLHttpRequest, {UNSENT: 0, OPENED: 1, HEADERS_RECEIVED: 2, LOADING: 3, DONE: 4});\n\n  // Generate getter for attributes of xhr\n  function getterFactory(attr) {\n    return function () {\n      var v = this.hasOwnProperty(attr + \"_\") ? this[attr + \"_\"] : this.xhr[attr];\n      var attrGetterHook = (proxy[attr] || {})[\"getter\"]\n      return attrGetterHook && attrGetterHook(v, this) || v\n    }\n  }\n\n  // Generate setter for attributes of xhr; by this we have an opportunity\n  // to hookAjax event callbacks （eg: `onload`） of xhr;\n  function setterFactory(attr) {\n    return function (v) {\n      var xhr = this.xhr;\n      var that = this;\n      var hook = proxy[attr];\n      // hookAjax  event callbacks such as `onload`、`onreadystatechange`...\n      if (attr.substring(0, 2) === 'on') {\n        that[attr + \"_\"] = v;\n        xhr[attr] = function (e) {\n          e = configEvent(e, that)\n          var ret = proxy[attr] && proxy[attr].call(that, xhr, e)\n          ret || v.call(that, e);\n        }\n      } else {\n        //If the attribute isn't writable, generate proxy attribute\n        var attrSetterHook = (hook || {})[\"setter\"];\n        v = attrSetterHook && attrSetterHook(v, that) || v\n        this[attr + \"_\"] = v;\n        try {\n          // Not all attributes of xhr are writable(setter may undefined).\n          xhr[attr] = v;\n        } catch (e) {\n        }\n      }\n    }\n  }\n\n  // Hook methods of xhr.\n  function hookFunction(fun) {\n    return function () {\n      var args = [].slice.call(arguments)\n      if (proxy[fun]) {\n        var ret = proxy[fun].call(this, args, this.xhr)\n        // If the proxy return value exists, return it directly,\n        // otherwise call the function of xhr.\n        if (ret) return ret;\n      }\n      return this.xhr[fun].apply(this.xhr, args);\n    }\n  }\n\n  // Return the real XMLHttpRequest\n  return win[realXhr];\n}\n\nexport function unHook(win) {\n  win = win || window\n  if (win[realXhr]) win.XMLHttpRequest = win[realXhr];\n  win[realXhr] = undefined;\n}\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-hook.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n */\n\nimport {hook, unHook, configEvent, events} from \"./xhr-hook\";\n\nvar eventLoad = events[0],\n  eventLoadEnd = events[1],\n  eventTimeout = events[2],\n  eventError = events[3],\n  eventReadyStateChange = events[4],\n  eventAbort = events[5];\n\n\nvar singleton,\n  prototype = 'prototype';\n\n\nexport function proxy(proxy, win) {\n  if (singleton) throw \"Proxy already exists\";\n  return singleton = new Proxy(proxy, win);\n}\n\nexport function unProxy(win) {\n  singleton = null\n  unHook(win)\n}\n\nfunction trim(str) {\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction getEventTarget(xhr) {\n  return xhr.watcher || (xhr.watcher = document.createElement('a'));\n}\n\nfunction triggerListener(xhr, name) {\n  var xhrProxy = xhr.getProxy();\n  var callback = 'on' + name + '_';\n  var event = configEvent({type: name}, xhrProxy);\n  xhrProxy[callback] && xhrProxy[callback](event);\n  var evt;\n  if (typeof(Event) === 'function') {\n    evt = new Event(name, {bubbles: false});\n  } else {\n    // https://stackoverflow.com/questions/27176983/dispatchevent-not-working-in-ie11\n    evt = document.createEvent('Event');\n    evt.initEvent(name, false, true);\n  }\n  getEventTarget(xhr).dispatchEvent(evt);\n}\n\n\nfunction Handler(xhr) {\n  this.xhr = xhr;\n  this.xhrProxy = xhr.getProxy();\n}\n\nHandler[prototype] = Object.create({\n  resolve: function resolve(response) {\n    var xhrProxy = this.xhrProxy;\n    var xhr = this.xhr;\n    xhrProxy.readyState = 4;\n    xhr.resHeader = response.headers;\n    xhrProxy.response = xhrProxy.responseText = response.response;\n    xhrProxy.statusText = response.statusText;\n    xhrProxy.status = response.status;\n    triggerListener(xhr, eventReadyStateChange);\n    triggerListener(xhr, eventLoad);\n    triggerListener(xhr, eventLoadEnd);\n  },\n  reject: function reject(error) {\n    this.xhrProxy.status = 0;\n    triggerListener(this.xhr, error.type);\n    triggerListener(this.xhr, eventLoadEnd);\n  }\n});\n\nfunction makeHandler(next) {\n  function sub(xhr) {\n    Handler.call(this, xhr);\n  }\n\n  sub[prototype] = Object.create(Handler[prototype]);\n  sub[prototype].next = next\n  return sub;\n}\n\nvar RequestHandler = makeHandler(function (rq) {\n  var xhr = this.xhr;\n  rq = rq || xhr.config;\n  xhr.withCredentials = rq.withCredentials;\n  xhr.open(rq.method, rq.url, rq.async !== false, rq.user, rq.password);\n  for (var key in rq.headers) {\n    xhr.setRequestHeader(key, rq.headers[key]);\n  }\n  xhr.send(rq.body);\n});\n\nvar ResponseHandler = makeHandler(function (response) {\n  this.resolve(response);\n});\n\nvar ErrorHandler = makeHandler(function (error) {\n  this.reject(error);\n});\n\nfunction Proxy(proxy, win) {\n  var onRequest = proxy.onRequest,\n    onResponse = proxy.onResponse,\n    onError = proxy.onError;\n\n  function handleResponse(xhr, xhrProxy) {\n    var handler = new ResponseHandler(xhr);\n    var ret = {\n      response: xhrProxy.response || xhrProxy.responseText, //ie9\n      status: xhrProxy.status,\n      statusText: xhrProxy.statusText,\n      config: xhr.config,\n      headers: xhr.resHeader || xhr.getAllResponseHeaders().split('\\r\\n').reduce(function (ob, str) {\n        if (str === \"\") return ob;\n        var m = str.split(\":\");\n        ob[m.shift()] = trim(m.join(':'));\n        return ob;\n      }, {})\n    };\n    if (!onResponse) return handler.resolve(ret);\n    onResponse(ret, handler);\n  }\n\n  function onerror(xhr, xhrProxy, error, errorType) {\n    var handler = new ErrorHandler(xhr);\n    error = {config: xhr.config, error: error, type: errorType};\n    if (onError) {\n      onError(error, handler);\n    } else {\n      handler.next(error);\n    }\n  }\n\n  function preventXhrProxyCallback() {\n    return true;\n  }\n\n  function errorCallback(errorType) {\n    return function (xhr, e) {\n      onerror(xhr, this, e, errorType);\n      return true;\n    }\n  }\n\n  function stateChangeCallback(xhr, xhrProxy) {\n    if (xhr.readyState === 4 && xhr.status !== 0) {\n      handleResponse(xhr, xhrProxy);\n    } else if (xhr.readyState !== 4) {\n      triggerListener(xhr, eventReadyStateChange);\n    }\n    return true;\n  }\n\n  return hook({\n    onload: preventXhrProxyCallback,\n    onloadend: preventXhrProxyCallback,\n    onerror: errorCallback(eventError),\n    ontimeout: errorCallback(eventTimeout),\n    onabort: errorCallback(eventAbort),\n    onreadystatechange: function (xhr) {\n      return stateChangeCallback(xhr, this);\n    },\n    open: function open(args, xhr) {\n      var _this = this;\n      var config = xhr.config = {headers: {}};\n      config.method = args[0];\n      config.url = args[1];\n      config.async = args[2];\n      config.user = args[3];\n      config.password = args[4];\n      config.xhr = xhr;\n      var evName = 'on' + eventReadyStateChange;\n      if (!xhr[evName]) {\n        xhr[evName] = function () {\n          return stateChangeCallback(xhr, _this);\n        };\n      }\n\n      // 如果有请求拦截器，则在调用onRequest后再打开链接。因为onRequest最佳调用时机是在send前，\n      // 所以我们在send拦截函数中再手动调用open，因此返回true阻止xhr.open调用。\n      //\n      // 如果没有请求拦截器，则不用阻断xhr.open调用\n      if (onRequest) return true;\n    },\n    send: function (args, xhr) {\n      var config = xhr.config\n      config.withCredentials = xhr.withCredentials\n      config.body = args[0];\n      if (onRequest) {\n        // In 'onRequest', we may call XHR's event handler, such as `xhr.onload`.\n        // However, XHR's event handler may not be set until xhr.send is called in\n        // the user's code, so we use `setTimeout` to avoid this situation\n        var req = function () {\n          onRequest(config, new RequestHandler(xhr));\n        }\n        config.async === false ? req() : setTimeout(req)\n        return true;\n      }\n    },\n    setRequestHeader: function (args, xhr) {\n      // Collect request headers\n      xhr.config.headers[args[0].toLowerCase()] = args[1];\n      if (onRequest) return true;\n    },\n    addEventListener: function (args, xhr) {\n      var _this = this;\n      if (events.indexOf(args[0]) !== -1) {\n        var handler = args[1];\n        getEventTarget(xhr).addEventListener(args[0], function (e) {\n          var event = configEvent(e, _this);\n          event.type = args[0];\n          event.isTrusted = true;\n          handler.call(_this, event);\n        });\n        return true;\n      }\n    },\n    getAllResponseHeaders: function (_, xhr) {\n      var headers = xhr.resHeader\n      if (headers) {\n        var header = \"\";\n        for (var key in headers) {\n          header += key + ': ' + headers[key] + '\\r\\n';\n        }\n        return header;\n      }\n    },\n    getResponseHeader: function (args, xhr) {\n      var headers = xhr.resHeader\n      if (headers) {\n        return headers[(args[0] || '').toLowerCase()];\n      }\n    }\n  }, win);\n}\n\n\n\n\n\n\n\n// WEBPACK FOOTER //\n// ./src/xhr-proxy.js","/*\n * author: wendux\n * email: 824783146@qq.com\n * source code: https://github.com/wendux/Ajax-hook\n **/\nexport {hook, unHook}from \"./src/xhr-hook\"\nexport {proxy, unProxy} from \"./src/xhr-proxy\"\n\n\n\n\n// WEBPACK FOOTER //\n// ./index.js"],"sourceRoot":""}
\ No newline at end of file
diff --git a/package.json b/package.json
index 8c5e03e..fb2696b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ajax-hook",
-  "version": "2.1.2",
+  "version": "2.1.3",
   "main": "index.js",
   "typings": "./index.d.ts",
   "author": {
diff --git a/src/xhr-proxy.js b/src/xhr-proxy.js
index f0e72f0..1503636 100644
--- a/src/xhr-proxy.js
+++ b/src/xhr-proxy.js
@@ -18,9 +18,9 @@ var singleton,
   prototype = 'prototype';
 
 
-export function proxy(proxy,win) {
+export function proxy(proxy, win) {
   if (singleton) throw "Proxy already exists";
-  return singleton = new Proxy(proxy,win);
+  return singleton = new Proxy(proxy, win);
 }
 
 export function unProxy(win) {
@@ -115,7 +115,7 @@ function Proxy(proxy, win) {
   function handleResponse(xhr, xhrProxy) {
     var handler = new ResponseHandler(xhr);
     var ret = {
-      response: xhrProxy.response||xhrProxy.responseText, //ie9
+      response: xhrProxy.response || xhrProxy.responseText, //ie9
       status: xhrProxy.status,
       statusText: xhrProxy.statusText,
       config: xhr.config,
@@ -209,7 +209,7 @@ function Proxy(proxy, win) {
     setRequestHeader: function (args, xhr) {
       // Collect request headers
       xhr.config.headers[args[0].toLowerCase()] = args[1];
-      return true;
+      if (onRequest) return true;
     },
     addEventListener: function (args, xhr) {
       var _this = this;