XMLHttpRequestEventTarget.onerror - Web API 接口参考 编辑

XMLHttpRequestEventTarget.onerror 是XMLHttpRequest 事务由于错误而失败时调用的函数。

语法

XMLHttpRequest.onerror = callback;

Values

• callback 是当请求失败时执行的函数。

举例

var xmlhttp = new XMLHttpRequest(),
  method = 'GET',
  url = '/wiki/';

xmlhttp.open(method, url, true);
xmlhttp.onerror = function () {
  console.log("** An error occurred during the transaction");
};
xmlhttp.send();

规范

Specification	Status	Comment
XMLHttpRequest	Living Standard	WHATWG living standard

浏览器兼容性

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