modules/background_sync/SyncEvent.idl

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

[
    Constructor(DOMString type, SyncEventInit init),
    Exposed=ServiceWorker,
    RuntimeEnabled=BackgroundSync,
] interface SyncEvent : ExtendableEvent {
    readonly attribute DOMString tag;
    readonly attribute boolean lastChance;
};