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

The aborted read-only property returns a Boolean that indicates whether the DOM request(s) the signal is communicating with is/are aborted (true) or not (false).


var isAborted = abortSignal.aborted;


A Boolean


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 aborted property, and send an appropriate log to the console.

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

// ...

signal.aborted ? console.log('Request has been aborted') : console.log('Request not aborted');


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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support661657 No5311.1
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support666616575311.1 No

See also

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills
Last updated by: fscholz,