Initial commit with user management

static/service_worker.js

@@ -0,0 +1,45 @@
+const CACHE_NAME = 'notes2-{{ .VERSION }}'
+const CACHED_ASSETS = [
+	'/',
+	'/js/{{ .VERSION }}/app.mjs',
+]
+
+async function precache() {
+	const cache = await caches.open(CACHE_NAME)
+	return cache.addAll(CACHED_ASSETS)
+}
+
+async function fetchAsset(event) {
+	try {
+		return await fetch(event.request)
+	} catch (e) {
+		const cache = await caches.open(CACHE_NAME)
+		return cache.match(event.request)
+	}
+}
+
+async function cleanupCache() {
+	const keys = await caches.keys()
+	const keysToDelete = keys.map(key => {
+		if (key !== CACHE_NAME)
+			return caches.delete(key)
+	})
+	return Promise.all(keysToDelete)
+}
+
+self.addEventListener('install', event => {
+	console.log('SERVICE WORKER: install')
+	self.skipWaiting()
+	event.waitUntil(precache())
+})
+
+self.addEventListener('activate', event => {
+	console.log('SERVICE WORKER: activate')
+	self.clients.claim()
+	event.waitUntil(cleanupCache())
+})
+
+self.addEventListener('fetch', event => {
+	//console.log('SERVICE WORKER: fetch')
+	event.respondWith(fetchAsset(event))
+})