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• 特性
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

XMLHttpRequestEventTarget is the interface that describes the event handlers you can implement in an object that will handle events for an XMLHttpRequest .

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特性

XMLHttpRequestEventTarget.onabort

Contains the function to call when a request is aborted and the abort event is received by this object.

XMLHttpRequestEventTarget.onerror

Contains the function to call when a request encounters an error and the error event is received by this object.

XMLHttpRequestEventTarget.onload

Contains the function to call when an HTTP request returns after successfully fetching content and the load event is received by this object.

XMLHttpRequestEventTarget.onloadstart

Contains the function that gets called when the HTTP request first begins loading data and the loadstart event is received by this object.

XMLHttpRequestEventTarget.onprogress

Contains the function that is called periodically with information about the progress of the request and the progress event is received by this object.

XMLHttpRequestEventTarget.ontimeout

Contains the function that is called if the event times out and the timeout event is received by this object; this only happens if a timeout has been previously established by setting the value of the XMLHttpRequest 对象的 timeout 属性。

XMLHttpRequestEventTarget.onloadend

Contains the function that is called when the load is completed, even if the request failed, and the loadend event is received by this object.

规范

规范	状态	注释
XMLHttpRequest	实时标准	WHATWG (Web 超文本应用程序技术工作组) 实时标准

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
XMLHttpRequestEventTarget	Chrome 1	Edge 12	Firefox 1	IE 7	Opera Yes	Safari 1	WebView Android 1	Chrome Android 18	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android 1.0
onabort	Chrome Yes	Edge ≤18	Firefox Yes	IE 10	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
onerror	Chrome Yes	Edge ≤18	Firefox Yes	IE 10	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
onload	Chrome Yes	Edge ≤18	Firefox Yes	IE 9	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
onloadend	Chrome Yes	Edge ≤18	Firefox Yes	IE 10	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
onloadstart	Chrome Yes	Edge ≤18	Firefox Yes	IE 10	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
onprogress	Chrome Yes	Edge ≤18	Firefox Yes	IE 10	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
ontimeout	Chrome Yes	Edge ≤18	Firefox Yes	IE 8	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

完整支持

另请参阅

• XMLHttpRequest
• 使用 XMLHttpRequest

元数据

• 最后修改： Mar 18, 2019

相关话题

1. XMLHttpRequestEventTarget
2. 特性

   1. onabort
   2. onerror
   3. onload
   4. onloadstart
   5. onprogress
3. 继承：

   1. EventTarget
4. XMLHttpRequest 相关页面

   1. FormData
   2. XMLHttpRequest
   3. XMLHttpRequestUpload