// 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 transfer); };