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XMLHttpRequestEventTarget.onabort

The XMLHttpRequestEventTarget.onabort is the function called when an XMLHttpRequest transaction is aborted, such as when the XMLHttpRequest.abort() function is called.

Syntax

XMLHttpRequest.onabort = callback;

Values

callback is the function to be executed when the transaction is aborted.

Example

var xmlhttp = new XMLHttpRequest(),
  method = 'GET',
  url = 'https://developer.mozilla.org/';

xmlhttp.open(method, url, true);
xmlhttp.onabort = function () {
  console.log('** The request was aborted');
};
xmlhttp.send();
//..
xmlhttp.abort(); // This will invoke our onabort handler above

Specifications

Specification
XMLHttpRequest Standard (XMLHttpRequest) # handler-xhr-onabort

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`onabort`	1	12	3.5	10	≤12.1	4	≤37	18	4	≤12.1	3	1.0

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https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequestEventTarget/onabort