AbortSignal: abort event

The abort event of the Fetch API is fired when a fetch request is aborted, i.e. using AbortController.abort().

Bubbles No
Cancelable No
Interface Event
Event handler onabort

Examples

In the following snippets, we create a new AbortController object, and get its AbortSignal (available in the signal property). Later on we check whether or not it the signal has been aborted using the onabort property, and send an appropriate log to the console.

You can use the abort event in an addEventListener method:

var controller = new AbortController(); 
var signal = controller.signal; 

signal.addEventListener('abort', function() {
 console.log('Request aborted'); 
};

Or use the onabort event handler property:

var controller = new AbortController();
var signal = controller.signal;

signal.onabort = function() {
  console.log('Request aborted');
};

Specifications

Specification Status
DOM
The definition of 'abort' in that specification.
Living Standard

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
abort event
Experimental
Chrome Full support 66Edge Full support 16Firefox Full support 57IE No support NoOpera Full support 53Safari Full support 11.1WebView Android Full support 66Chrome Android Full support 66Edge Mobile No support NoFirefox Android Full support 57Opera Android Full support 47Safari iOS Full support 11.1Samsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also

Document Tags and Contributors

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Contributors to this page: fscholz, mdnwebdocs-bot, chrisdavidmills
Last updated by: fscholz,