This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The abort event of the Fetch API is fired when a fetch request is aborted, i.e. using FetchController.abort().
| Bubbles | No |
| Cancelable | No |
| Target objects | FetchSignal |
| Interface | Event |
Examples
var controller = new FetchController();
var signal = controller.signal;
signal.onabort = function() {
console.log('Fetch request cancelled');
};
Inheritance
The abort event implements the Event interface — it has available the properties and methods defined on this interface.
Specifications
Not part of a specification yet.
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support |
No support |
No support | No support[1] | No support |
No support |
No support |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | No support | No support[1] | No support | No support | No support | No support |
[1] Hidden behind a preference in 55+ Nightly. In about:config, you need to create two new boolean prefs — dom.fetchObserver.enabled and dom.fetchController.enabled — and set the values of both to true.