fix offline mode

web-app-vue/public/sw.js

@@ -1,39 +1,18 @@
-// https://docs.pwabuilder.com/#/home/sw-intro?id=example-worker
+// This is the "Offline copy of pages" service worker
 
-const CACHE_NAME = 'cool-cache';
+const CACHE = "pwabuilder-offline";
 
-// Add whichever assets you want to pre-cache here:
-const PRECACHE_ASSETS = [
-  '/assets/',
-  '/dados.csv'
-]
+importScripts('https://storage.googleapis.com/workbox-cdn/releases/5.1.2/workbox-sw.js');
 
-// Listener for the install event - pre-caches our assets list on service worker install.
-self.addEventListener('install', event => {
-  event.waitUntil((async () => {
-    const cache = await caches.open(CACHE_NAME);
-    cache.addAll(PRECACHE_ASSETS);
-  })());
+self.addEventListener("message", (event) => {
+  if (event.data && event.data.type === "SKIP_WAITING") {
+    self.skipWaiting();
+  }
 });
 
-self.addEventListener('activate', event => {
-  event.waitUntil(self.clients.claim());
-});
-
-self.addEventListener('fetch', event => {
-  event.respondWith(async () => {
-    const cache = await caches.open(CACHE_NAME);
-
-    // match the request to our cache
-    const cachedResponse = await cache.match(event.request);
-
-    // check if we got a valid response
-    if (cachedResponse !== undefined) {
-      // Cache hit, return the resource
-      return cachedResponse;
-    } else {
-      // Otherwise, go to the network
-      return fetch(event.request)
-    };
-  });
-});
+workbox.routing.registerRoute(
+  new RegExp('/*'),
+  new workbox.strategies.StaleWhileRevalidate({
+    cacheName: CACHE
+  })
+);