modules/background_sync/SyncRegistration.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.

[
    Exposed=(Window,ServiceWorker),
    GarbageCollected,
    RuntimeEnabled=BackgroundSync,
] interface SyncRegistration {
    [RuntimeEnabled=BackgroundSyncV2] readonly attribute DOMString tag;
    [CallWith=ScriptState] Promise<boolean> unregister();
};