The Window.onrejectionhandled property is an event handler for processing rejectionhandled events, which are raised when Promises are rejected.
SyntaxEdit
window.addEventListener("rejectionhandled", function(event) { ... });
window.onrejectionhandled = function(event) { ...};
SpecificationsEdit
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'onrejectionhandled' in that specification. |
Living Standard | Initial definition. |