WindowEventHandlers.onrejectionhandled

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

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