chromium/third_party/blink/renderer/core/events/promise_rejection_event_init.idl

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://html.spec.whatwg.org/C/#promiserejectioneventinit

dictionary PromiseRejectionEventInit : EventInit {
    required Promise<any> promise;
    any reason;
};