Source/modules/serviceworkers/ServiceWorkerClient.idl

// Copyright 2014 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.

// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#service-worker-client-interface
[
    Exposed=ServiceWorker,
    RuntimeEnabled=ServiceWorker,
    GarbageCollected,
    TypeChecking=Interface,
] interface ServiceWorkerClient {
    readonly attribute unsigned long id;

    [Custom, RaisesException, CallWith=ExecutionContext] void postMessage(SerializedScriptValue message, optional sequence<Transferable> transfer);
};