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// Copyright 2020 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. self.addEventListener('install', evt => { evt.waitUntil(async function() { const c = await caches.open('foo'); return c.addAll([ './empty.js?1&block', './empty.js?2&block', './empty.js?3&block', ]); }()); });