https://foodie-vvn.netlify.app/worker.js

1var CACHE_NAME = "foodie-vvn";
2var urlsToCache = ["/", "/completed"];
3
4// Install a service worker
5self.addEventListener("install", (event) => {
6  // Perform install steps
7  event.waitUntil(
8    caches.open(CACHE_NAME).then(function (cache) {
9      console.log("Opened cache");
10      return cache.addAll(urlsToCache);
11    })
12  );
13});
14
15// Cache and return requests
16self.addEventListener("fetch", (event) => {
17  event.respondWith(
18    caches.match(event.request).then(function (response) {
19      // Cache hit - return response
20      if (response) {
21        return response;
22      }
23      return fetch(event.request);
24    })
25  );
26});
27
28// Update a service worker
29self.addEventListener("activate", (event) => {
30  var cacheWhitelist = ["foodie-vvn"];
31  event.waitUntil(
32    caches.keys().then((cacheNames) => {
33      return Promise.all(
34        cacheNames.map((cacheName) => {
35          if (cacheWhitelist.indexOf(cacheName) === -1) {
36            return caches.delete(cacheName);
37          }
38        })
39      );
40    })
41  );
42});