The onrejectionhandled property of the WindowEventHandlers mixin is the EventHandler for processing rejectionhandled events. These events are raised when Promises are rejected.
Syntax
window.addEventListener("rejectionhandled", function(event) { ... });
window.onrejectionhandled = function(event) { ...};
Example
window.onrejectionhandled = function(e) {
console.log(e.reason);
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'onrejectionhandled' 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.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
onrejectionhandled | Chrome Full support 49 | Edge ? | Firefox
Full support
69
| IE No support No | Opera Full support 36 | Safari Full support 11 | WebView Android Full support 49 | Chrome Android Full support 49 | Firefox Android
Full support
68
| Opera Android No support No | Safari iOS Full support 11.3 | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.