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@@ -15,3 +15,135 @@
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なにか特殊な方法が必要でしょうか？
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---
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**追記**
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index.htmlでのServiceWorkerの登録は下記のようになっています。
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```JacaScript
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if ('serviceWorker' in navigator) {
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navigator.serviceWorker.register('sw.js')
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.then(reg => {
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console.log('Service worker registered.', reg);
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reg.onupdatefound = () => {
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console.log('cash update.');
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reg.update();
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}
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if (typeof reg.update == 'function') {
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console.log('cash update.');
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reg.update();
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}
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});
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} else console.log('Service worker can\'t registered.');
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```
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sw.jsの中身です。
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```JacaScript
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var CACHE_NAME = "otft-info-20200914";
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var urlsToCache = [
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"/",
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"index.html",
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"info/otftnamelogo.png",
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"info/note.svg",
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"info/beat01.png",
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"info/LogIcon.png"
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];
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self.addEventListener('install', function(event) {
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event.waitUntil(
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caches
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.open(CACHE_NAME)
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.then(function(cache){
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return cache.addAll(urlsToCache);
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})
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);
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});
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self.addEventListener('fetch', function(e) {
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});
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self.addEventListener('activate', function(event) {
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event.waitUntil(
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caches.keys().then(function(cacheNames) {
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return Promise.all(
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cacheNames.filter(function(cacheName) {
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return cacheName !== CACHE_NAME;
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}).map(function(cacheName) {
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console.info("delete cache: " + cacheName);
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return caches.delete(cacheName);
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})
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);
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}).then(() => {
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clients.Claim();
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})
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);
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});
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```
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