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

The AbortController interface represents a controller object that allows you to abort one or more DOM requests as and when desired.

You can create a new AbortController object using the AbortController.AbortController() constructor. Communicating with a DOM request is done using an AbortSignal object.


Creates a new AbortController object instance.


AbortController.signal Read only
Returns a AbortSignal object instance, which can be used to communicate with/abort a DOM request.


Aborts a DOM request before it has completed. This is able to abort fetch requests, consumption of any response Body, and streams.


In the following snippet, we aim to download a video using the Fetch API.

We first create a controller using the AbortController() constructor, then grab a reference to its associated AbortSignal object using the AbortController.signal property.

When the fetch request is initiated, we pass in the AbortSignal as an option inside the request's options object (see {signal}, below). This associates the signal and controller with the fetch request and allows us to abort it by calling AbortController.abort(), as seen below in the second event listener.

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

var downloadBtn = document.querySelector('.download');
var abortBtn = document.querySelector('.abort');

downloadBtn.addEventListener('click', fetchVideo);

abortBtn.addEventListener('click', function() {
  console.log('Download aborted');

function fetchVideo() {
  fetch(url, {signal}).then(function(response) {
  }).catch(function(e) {
    reports.textContent = 'Download error: ' + e.message;

Note: When abort() is called, the fetch() promise rejects with an AbortError.

You can find a full working example on GitHub — see abort-api (see it running live also).


Specification Status Comment
The definition of 'AbortController' in that specification.
Living Standard Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 66 16 57 No 53 11.1
AbortController() constructor 66 16 57 No 53 11.1
signal 66 16 57 No 53 11.1
abort 66 16 57 No 53 11.1
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 66 66 16 57 53 11.1 No
AbortController() constructor 66 66 16 57 53 11.1 No
signal 66 66 16 57 53 11.1 No
abort 66 66 16 57 53 11.1 No

See also

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