The rejectionhandled
event is fired when a JavaScript Promise
is rejected, and after the rejection is handled by the promise's rejection handling code.
Bubbles | No |
Cancelable | No |
Target objects | defaultView |
Interface | PromiseRejectionEvent |
The rejectionhandled
event implements the PromiseRejectionEvent
interface, which inherits from Event
. You can use the properties and methods defined on these interfaces.
window.addEventListener("rejectionhandled", function (event) { console.log("Promise rejected! Reason: " + event.reason); });
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'onrejectionhandled' in that specification. | Living Standard | Initial definition. |
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Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 49 | No support[1] | No support | No support | No support |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | No support | No support[1] | No support | No support | No support |
[1] Firefox implements the PromiseRejectionEvent
interface if you go to about:config and set the dom.promise_rejection_events.enabled
pref to true
. However, Firefox doesn't yet actually send the unhandledrejection
or understand rejectionhandled
events.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/Events/rejectionhandled