Automatically update service worker.

src/registerServiceWorker.js

@@ -4,28 +4,32 @@ import { register } from 'register-service-worker'
 
 if (process.env.NODE_ENV === 'production') {
     register(`${process.env.BASE_URL}service-worker.js`, {
-    ready () {
+        ready() {
             console.log(
                 'App is being served from cache by a service worker.\n' +
                 'For more details, visit https://goo.gl/AFskqB'
             )
         },
-    registered () {
+        registered() {
             console.log('Service worker has been registered.')
         },
-    cached () {
+        cached() {
             console.log('Content has been cached for offline use.')
         },
-    updatefound () {
+        updatefound() {
             console.log('New content is downloading.')
         },
-    updated () {
+        updated() {
             console.log('New content is available; please refresh.')
+            caches.keys().then(function(names) {
+                for (let name of names) caches.delete(name);
+            });
+            window.location.reload()
         },
-    offline () {
+        offline() {
             console.log('No internet connection found. App is running in offline mode.')
         },
-    error (error) {
+        error(error) {
             console.error('Error during service worker registration:', error)
         }
     })