feat(server): working friend page

server/static/js/service_worker.js

@@ -0,0 +1,59 @@
+let g_permanent = [
+	'/static/css/bootstrap.min.css',
+	'/static/js/popper.min.js',
+	'/static/js/bootstrap.min.js',
+	'/static/fontawesome/css/fontawesome.min.css',
+	'/static/fontawesome/css/solid.min.css',
+	'/static/fontawesome/css/regular.min.css',
+	'/static/fontawesome/css/brands.min.css',
+	'/static/fontawesome/webfonts/fa-solid-900.woff2'
+];
+
+let g_temp = [
+	'/static/css/common.css',
+	'/static/css/friends.css',
+	'/static/css/index.css',
+	'/static/js/common.js',
+	'/',
+	'/friends/',
+	'/settings/',
+]
+
+self.addEventListener('install', function (e) {
+	/*
+	e.waitUntil(
+		caches.open('fft').then(function (cache) {
+			return cache.addAll([...g_temp, ...g_permanent]);
+		})
+	);
+	 */
+});
+
+self.addEventListener('fetch', function (event) {
+	/*
+	event.respondWith(
+		caches.match(event.request).then(async function (response) {
+			if (event.request.url in g_temp)
+			{
+				let r = await fetch(event.request);
+				if (r.status === 200)
+					return r;
+				return response;
+			}
+			return response || fetch(event.request);
+		})
+	);
+	 */
+});
+
+self.addEventListener("activate", (event) => {
+	event.waitUntil(
+		caches.keys().then((cacheNames) => {
+			return Promise.all(
+				cacheNames.map((cacheName) => {
+					return caches.delete(cacheName);
+				})
+			);
+		})
+	);
+});