feat: don't cache missing file

public/sw.js

@@ -1,10 +1,12 @@
 const addResourcesToCache = async (resources) => {
-    const cache = await caches.open('v1');
+    const cache = await caches.open('cozy-reader-app-v1');
+    console.log('adding resources to cache...', resources)
     await cache.addAll(resources);
 };
 
 const putInCache = async (request, response) => {
-    const cache = await caches.open('v1');
+    const cache = await caches.open('cozy-reader-app-v1');
+    console.log('adding one response to cache...', request)
     await cache.put(request, response);
 };
 
@@ -59,25 +61,27 @@ const enableNavigationPreload = async () => {
 };
 
 self.addEventListener('activate', (event) => {
+    console.log('activating...', event)
     event.waitUntil(enableNavigationPreload());
 });
 
 self.addEventListener('install', (event) => {
+    console.log('installing...', event)
     event.waitUntil(
         addResourcesToCache([
             './',
-            './index.html',
-            './favicon.ico'
+            './favicon.ico',
         ])
     );
 });
 
 self.addEventListener('fetch', (event) => {
+    console.log('fetch happened', event.request)
     event.respondWith(
         cacheFirst({
             request: event.request,
             preloadResponsePromise: event.preloadResponse,
-            fallbackUrl: './index.html',
+            fallbackUrl: './',
         })
     );
 });

src/pages/index.astro

@@ -40,10 +40,26 @@ if (url)
 <Serialize id="app-config" data={appConfig} />
 
 <script>
-  if ('serviceWorker' in navigator) {
-    console.log('trying to register service worker...')
-    navigator.serviceWorker.register("/sw.js");
-  } else {
-    console.log('browser doesn\'t support service workers. boo')
+  const registerSW = async () => {
+    if ("serviceWorker" in navigator) {
+      try {
+        const registration = await navigator.serviceWorker.register("/sw.js", {
+          scope: "/",
+        });
+        if (registration.installing) {
+          console.log("Service worker installing");
+        } else if (registration.waiting) {
+          console.log("Service worker installed");
+        } else if (registration.active) {
+          console.log("Service worker active");
+        }
+      } catch (error) {
+        console.error(`Registration failed with ${error}`);
+      }
+    } else {
+      console.log('browser doesn\'t support service workers. boo')
+    }
   }
+
+  registerSW();
 </script>