Web/API/GlobalEventHandlers/onabort

This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.

Draft This page is not complete.

The onabort property of the GlobalEventHandlers mixin is the EventHandler for processing abort events sent to the window.

While the standard for aborting a document load is defined, HTML issue #3525 suggests that browsers should not currently fire the abort event on a Window that would trigger onabort to be called.

TODO: define what "abort" is. Closing the window via window manager? Stopping the load of the page? By which means and reasons (user, network/server)? At which stages would it fire / be caught? For IE, onabort is only available with <img> tags.

Syntax

window.onabort = functionRef;

Value

functionRef is a function name or a function expression.

Example

window.onabort = function() {
  alert('Load aborted.');
}

Specification

Specification	Status	Comment
HTML Living StandardThe definition of 'onabort' in that specification.	Living Standard

Browser compatibility

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.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
onabort	Chrome Full support Yes	Edge Full support ≤79	Firefox ?	IE ?	Opera ?	Safari ?	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android Full support Yes

Legend

Full support  

Full support

Compatibility unknown  

Compatibility unknown

This property is not available with Firefox 2 or Safari.

GlobalEventHandlers.onabort by Mozilla Contributors is licensed under CC-BY-SA 2.5.