Finish sveltekit 1.0 migration

package.json

@@ -9,26 +9,26 @@
     "format": "prettier --write ."
   },
   "devDependencies": {
-    "@sveltejs/kit": "1.0.0-next.588",
+    "@sveltejs/kit": "^1.3.10",
     "@typescript-eslint/eslint-plugin": "^4.33.0",
     "@typescript-eslint/parser": "^4.33.0",
     "eslint": "^7.32.0",
-    "eslint-config-prettier": "^8.5.0",
+    "eslint-config-prettier": "^8.6.0",
     "eslint-plugin-svelte3": "^3.4.1",
     "prettier": "~2.2.1",
     "prettier-plugin-svelte": "^2.9.0",
-    "svelte": "^3.55.0",
+    "svelte": "^3.55.1",
     "svelte-preprocess": "^4.10.7",
-    "tslib": "^2.4.1",
-    "typescript": "^4.9.4",
-    "vite": "^4.0.1"
+    "tslib": "^2.5.0",
+    "typescript": "^4.9.5",
+    "vite": "^4.1.1"
   },
   "type": "module",
   "dependencies": {
     "@damillora/plachta": "^2.0.2",
-    "@sveltejs/adapter-node": "^1.0.0",
+    "@sveltejs/adapter-node": "^1.1.6",
     "dayjs": "^1.11.7",
     "howler": "^2.2.3",
-    "sass": "^1.57.0"
+    "sass": "^1.58.0"
   }
 }

src/service-worker.js

@@ -1,86 +1,61 @@
-import { timestamp, files, build } from '$service-worker';
-
-const ASSETS = `cache${timestamp}`;
-
-// `build` is an array of all the files generated by the bundler,
-// `files` is an array of everything in the `static` directory
-const to_cache = build.concat(files);
-const staticAssets = new Set(to_cache);
-
-self.addEventListener('install', event => {
-	event.waitUntil(
-		caches
-			.open(ASSETS)
-			.then(cache => cache.addAll(to_cache))
-			.then(() => {
-				self.skipWaiting();
-			})
-	);
+import { build, files, version } from '$service-worker';
+ 
+// Create a unique cache name for this deployment
+const CACHE = `cache-${version}`;
+ 
+const ASSETS = [
+  ...build, // the app itself
+  ...files  // everything in `static`
+];
+ 
+self.addEventListener('install', (event) => {
+  // Create a new cache and add all files to it
+  async function addFilesToCache() {
+    const cache = await caches.open(CACHE);
+    await cache.addAll(ASSETS);
+  }
+ 
+  event.waitUntil(addFilesToCache());
 });
-
-self.addEventListener('activate', event => {
-	event.waitUntil(
-		caches.keys().then(async keys => {
-			// delete old caches
-			for (const key of keys) {
-				if (key !== ASSETS) await caches.delete(key);
-			}
-
-			self.clients.claim();
-		})
-	);
-});
-
-
-/**
- * Fetch the asset from the network and store it in the cache. 
- * Fall back to the cache if the user is offline.
- */
-async function fetchAndCache(request) {
-	const cache = await caches.open(`offline${timestamp}`)
-
-	try {
-		const response = await fetch(request);
-		cache.put(request, response.clone());
-		return response;
-	} catch (err) {
-		const response = await cache.match(request);
-		if (response) return response;
-
-		throw err;
-	}
-}
-
-self.addEventListener('fetch', event => {
-	if (event.request.method !== 'GET' || event.request.headers.has('range')) return;
-
-	const url = new URL(event.request.url);
-
-	// don't try to handle e.g. data: URIs
-	const isHttp = url.protocol.startsWith('http');
-	const isDevServerRequest = url.hostname === self.location.hostname && url.port !== self.location.port;
-	const isStaticAsset = url.host === self.location.host && staticAssets.has(url.pathname);
-	const skipBecauseUncached = event.request.cache === 'only-if-cached' && !isStaticAsset;
-
-	if (isHttp && !isDevServerRequest && !skipBecauseUncached) {
-		event.respondWith(
-			(async () => {
-				// always serve static files and bundler-generated assets from cache.
-				// if your application has other URLs with data that will never change,
-				// set this variable to true for them and they will only be fetched once.
-				const cachedAsset = isStaticAsset && await caches.match(event.request);
-
-				// for pages, you might want to serve a build `service-worker-index.html` file,
-				// which Sapper has generated for you. It's not right for every
-				// app, but if it's right for yours then uncomment this section
-				/*
-				if (!cachedAsset && url.origin === self.origin && routes.find(route => route.pattern.test(url.pathname))) {
-					return caches.match('/service-worker-index.html');
-				}
-				*/
-
-				return cachedAsset || fetchAndCache(event.request);
-			})()
-		);
-	}
+ 
+self.addEventListener('activate', (event) => {
+  // Remove previous cached data from disk
+  async function deleteOldCaches() {
+    for (const key of await caches.keys()) {
+      if (key !== CACHE) await caches.delete(key);
+    }
+  }
+ 
+  event.waitUntil(deleteOldCaches());
 });
+ 
+self.addEventListener('fetch', (event) => {
+  // ignore POST requests etc
+  if (event.request.method !== 'GET') return;
+ 
+  async function respond() {
+    const url = new URL(event.request.url);
+    const cache = await caches.open(CACHE);
+ 
+    // `build`/`files` can always be served from the cache
+    if (ASSETS.includes(url.pathname)) {
+      return cache.match(event.request);
+    }
+ 
+    // for everything else, try the network first, but
+    // fall back to the cache if we're offline
+    try {
+      const response = await fetch(event.request);
+ 
+      if (response.status === 200) {
+        cache.put(event.request, response.clone());
+      }
+ 
+      return response;
+    } catch {
+      return cache.match(event.request);
+    }
+  }
+ 
+  event.respondWith(respond());
+});