Skip waiting, update service worker

app.js

@@ -12,8 +12,9 @@ customElements.define('m-page-menu', PageMenu)
 
 class Setup {
   async run() {
-    navigator.serviceWorker
-    .addEventListener('controllerchange', () => {
+    const sw = navigator.serviceWorker
+    
+    sw.addEventListener('controllerchange', () => {
       if (this.registration.active) {
         window.location.reload(true)
       }

sw.js

@@ -13,6 +13,7 @@ async function initCache() {
 }
 
 self.addEventListener("install", event => {
+  self.skipWaiting()
   event.waitUntil(initCache())
 })