third_party/blink/renderer/modules/service_worker/fetch_event.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://w3c.github.io/ServiceWorker/#fetchevent-interface
[
    ActiveScriptWrappable,
    Exposed=ServiceWorker
] interface FetchEvent : ExtendableEvent {
    [CallWith=ScriptState] constructor(DOMString type, FetchEventInit eventInitDict);
    [SameObject] readonly attribute Request request;
    readonly attribute DOMString clientId;
    readonly attribute DOMString resultingClientId;
    readonly attribute boolean isReload;

    [CallWith=ScriptState, RaisesException] void respondWith(Promise<Response> r);
    [CallWith=ScriptState] readonly attribute Promise<any> preloadResponse;
    // FetchEvent#addPerformanceEntry
    // https://github.com/wanderview/fetchevent-worker-timing/blob/master/explainer.md
    [RuntimeEnabled=ServiceWorkerFetchEventWorkerTiming]
        void addPerformanceEntry(PerformanceMark entry);
    [RuntimeEnabled=ServiceWorkerFetchEventWorkerTiming]
        void addPerformanceEntry(PerformanceMeasure entry);
};