AbortController: abort() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2019.

See full compatibility

Note: This feature is available in Web Workers.

The abort() method of the AbortController interface aborts an asynchronous operation before it has completed. This is able to abort fetch requests, the consumption of any response bodies, or streams.

Syntax

abort()
abort(reason)

Parameters

reason Optional: The reason why the operation was aborted, which can be any JavaScript value. If not specified, the reason is set to "AbortError" DOMException.

Return value

None (undefined).

Examples

See the AbortSignal page for usage examples.

You can find a full working example on GitHub; you can also see it running live.

Specifications

Specification
DOM # ref-for-dom-abortcontroller-abortcontroller①

Browser compatibility

	desktop					mobile							server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`abort`	Chrome – Full support Chrome 66 (Release date: 2018-04-17) footnote Full support	Edge – Full support Edge 16 (Release date: 2017-10-17) footnote Full support	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote Full support	Opera – Full support Opera 53 (Release date: 2018-05-10) footnote Full support	Safari – Partial support Safari 11.1 – 12 (Release date: 2018-04-12) footnote Partial support footnote Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980. Safari – Full support Safari 12.1 (Release date: 2019-03-25) footnote Full support	Chrome Android – Full support Chrome Android 66 (Release date: 2018-04-17) footnote Full support	Firefox for Android – Full support Firefox for Android 57 (Release date: 2017-11-28) footnote Full support	Opera Android – Full support Opera Android 47 (Release date: 2018-07-23) footnote Full support	Safari on iOS – Partial support Safari on iOS 11.3 – 12 (Release date: 2018-03-29) footnote Partial support footnote Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980. Safari on iOS – Full support Safari on iOS 12.2 (Release date: 2019-03-25) footnote Full support	Samsung Internet – Full support Samsung Internet 9 (Release date: 2018-09-15) footnote Full support	WebView Android – Full support WebView Android 66 (Release date: 2018-04-17) footnote Full support	WebView on iOS – Partial support WebView on iOS 11.3 – 12 (Release date: 2018-03-29) footnote Partial support footnote Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980. WebView on iOS – Full support WebView on iOS 12.2 (Release date: 2019-03-25) footnote Full support	Bun – Full support Bun 1 (Release date: 2023-09-08) footnote Full support	Deno – Full support Deno 1 (Release date: 2020-05-13) footnote Full support	Node.js – Partial support Node.js 14.17 – 16.11 (Release date: 2021-05-11) footnote Partial support footnote The optional `reason` argument is not supported. Node.js – No support Node.js 16.14 – 16.17 (Release date: 2022-02-08) unknown Support unknown Node.js – Partial support Node.js 17 – 17 (Release date: 2021-10-19) footnote Partial support footnote The optional `reason` argument is not supported. Node.js – Full support Node.js 17.2 (Release date: 2021-11-30) footnote Full support
`reason` parameter	Chrome – Full support Chrome 98 (Release date: 2022-02-01) footnote Full support	Edge – Full support Edge 98 (Release date: 2022-02-03) footnote Full support	Firefox – Full support Firefox 97 (Release date: 2022-02-08) footnote Full support	Opera – Full support Opera 84 (Release date: 2022-02-16) footnote Full support	Safari – Full support Safari 15.4 (Release date: 2022-03-14) footnote Full support	Chrome Android – Full support Chrome Android 98 (Release date: 2022-02-01) footnote Full support	Firefox for Android – Full support Firefox for Android 97 (Release date: 2022-02-08) footnote Full support	Opera Android – Full support Opera Android 68 (Release date: 2022-03-30) footnote Full support	Safari on iOS – Full support Safari on iOS 15.4 (Release date: 2022-03-14) footnote Full support	Samsung Internet – Full support Samsung Internet 18 (Release date: 2022-08-08) footnote Full support	WebView Android – Full support WebView Android 98 (Release date: 2022-02-01) footnote Full support	WebView on iOS – Full support WebView on iOS 15.4 (Release date: 2022-03-14) footnote Full support	Bun – Full support Bun 1 (Release date: 2023-09-08) footnote Full support	Deno – Full support Deno 1.16 (Release date: 2021-11-08) footnote Full support	Node.js – No support Node.js 16.14 – 16.17 (Release date: 2022-02-08) footnote Removed in 17 and later Node.js – Full support Node.js 17.2 (Release date: 2021-11-30) footnote Full support

Tip: you can click/tap on a cell for more information.

Full support: Full support
Partial support: Partial support
: Has more compatibility info.