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service.js
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service.js
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// service.js
// Copyright (C) 2020 Kaz Nishimura
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
// for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// SPDX-License-Identifier: AGPL-3.0-or-later
/* eslint-env worker */
/**
* Service worker module.
*
* @module service.js
*/
"use strict";
const CACHE_NAME = "20210213.1";
self.addEventListener("install",
(event) => {
let prepareCache = async () => {
let cache = await caches.open(CACHE_NAME);
return await cache.addAll([
"./",
"index.html",
"app.webmanifest",
"resources/decorate.js",
"resources/app.js",
"resources/worklet.js",
"resources/site.css",
"resources/site-theme-default.css",
"resources/linuxfront-icon-01-192-full.png",
"resources/linuxfront-icon-01-256-full.png",
"resources/linuxfront-icon-01-512-full.png",
"https://cdnjs.cloudflare.com/ajax/libs/pure/2.0.3/pure-min.css",
"https://fonts.googleapis.com/icon?family=Material+Icons&display=block",
]);
};
event.waitUntil(prepareCache());
}
);
self.addEventListener("activate",
(event) => {
let cleanCache = async () => {
let cacheNames = await caches.keys();
cacheNames.forEach((name) => {
if (name != CACHE_NAME) {
caches.delete(name);
}
});
};
event.waitUntil(cleanCache());
}
);
self.addEventListener("fetch",
(event) => {
if (event.request.method == "GET") {
let getResponse = async (request) => {
let cache = await caches.open(CACHE_NAME);
let responseCached = await cache.match(request);
if (responseCached != null) {
return responseCached;
}
let response = await fetch(request);
return response;
};
event.respondWith(getResponse(event.request));
}
}
);