Update service-worker.js

service-worker.js

@@ -3,21 +3,31 @@ const urlsToCache = [
     '/',
     '/index.html',
     '/assets/icon-192.png',
-    '/assets/icon-512.png'
+    '/assets/icon-512.png',
+    '/manifest.json'
 ];
 
 self.addEventListener('install', (event) => {
     event.waitUntil(
-        caches.open(CACHE_NAME).then((cache) => {
-            return cache.addAll(urlsToCache);
-        })
+        caches.open(CACHE_NAME)
+            .then((cache) => {
+                console.log('Opened cache');
+                return cache.addAll(urlsToCache);
+            })
+            .catch((err) => {
+                console.log('Cache error: ', err);
+            })
     );
 });
 
 self.addEventListener('fetch', (event) => {
     event.respondWith(
-        caches.match(event.request).then((response) => {
-            return response || fetch(event.request);
-        })
+        caches.match(event.request)
+            .then((response) => {
+                if (response) {
+                    return response;
+                }
+                return fetch(event.request);
+            })
     );
 });