This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The onabort
read-only property of the FetchSignal
interface is an event handler Invoked when an abort
event fires, i.e. when the fetch request(s) the signal is communicating with is/are aborted.
Syntax
abortSignal.onabort = function() { ... };
Examples
In the following snippet, 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.
var controller = new AbortController(); var signal = controller.signal; signal.onabort = function() { console.log('Request aborted'); };
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'onabort' in that specification. |
Living Standard | Initial definition |
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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
onabort | Chrome Full support 66 | Edge Full support 16 | Firefox Full support 57 | IE No support No | Opera Full support 53 | Safari Full support 11.1 | WebView Android Full support 66 | Chrome Android Full support 66 | Firefox Android Full support 57 | Opera Android Full support 47 | Safari iOS Full support 11.3 | Samsung Internet Android Full support 9.0 |
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.