dnote/web/assets/service-worker.js
2021-12-08 22:26:15 +11:00

48 lines
1.6 KiB
JavaScript

/* Copyright (C) 2019, 2020, 2021 Monomax Software Pty Ltd
*
* This file is part of Dnote.
*
* Dnote 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.
*
* Dnote 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 Dnote. If not, see <https://www.gnu.org/licenses/>.
*/
/* eslint-disable no-restricted-globals, func-names, no-var, prefer-template */
self.addEventListener('install', function(event) {
var offlineRequest = new Request('static/offline.html');
event.waitUntil(
fetch(offlineRequest).then(function(response) {
return caches.open('offline').then(function(cache) {
console.log('cached offline page', response.url);
return cache.put(offlineRequest, response);
});
})
);
});
self.addEventListener('fetch', function(event) {
var request = event.request;
if (request.method === 'GET') {
event.respondWith(
fetch(request).catch(function(error) {
console.error(
'onfetch Failed. Serving cached offline fallback ' + error
);
return caches.open('offline').then(function(cache) {
return cache.match('offline.html');
});
})
);
}
});