work on sw

src/app/Coriolis.jsx

@@ -348,30 +348,32 @@ export default class Coriolis extends React.Component {
       // *Don't* register service worker file in, e.g., a scripts/ sub-directory!
       // See https://github.com/slightlyoff/ServiceWorker/issues/468
       const self = this;
-      register('/service-worker.js', {
-        ready (registration) {
-          console.log('Service worker is active.')
-        },
-        registered (registration) {
-          console.log('Service worker has been registered.')
-        },
-        cached (registration) {
-          console.log('Content has been cached for offline use.')
-        },
-        updatefound (registration) {
-          console.log('New content is downloading.')
-        },
-        updated (registration) {
-          self.setState({ appCacheUpdate: true });
-          console.log('New content is available; please refresh.')
-        },
-        offline () {
-          console.log('No internet connection found. App is running in offline mode.')
-        },
-        error (error) {
-          console.error('Error during service worker registration:', error)
-        }
-      });
+      if (process.env.NODE_ENV === 'production') {
+        register('/service-worker.js', {
+          ready (registration) {
+            console.log('Service worker is active.')
+          },
+          registered (registration) {
+            console.log('Service worker has been registered.')
+          },
+          cached (registration) {
+            console.log('Content has been cached for offline use.')
+          },
+          updatefound (registration) {
+            console.log('New content is downloading.')
+          },
+          updated (registration) {
+            self.setState({ appCacheUpdate: true });
+            console.log('New content is available; please refresh.')
+          },
+          offline () {
+            console.log('No internet connection found. App is running in offline mode.')
+          },
+          error (error) {
+            console.error('Error during service worker registration:', error)
+          }
+        });
+      }
     }
     window.onerror = this._onError.bind(this);
     window.addEventListener('resize', () => this.emitter.emit('windowResize'));

src/sw.js

@@ -2,6 +2,7 @@ console.log('Hello from sw.js');
 
 if (workbox) {
   console.log('Yay! Workbox is loaded 🎉');
+  workbox.precaching.precacheAndRoute(self.__precacheManifest);
   workbox.routing.registerRoute(
     new RegExp('https://fonts.(?:googleapis|gstatic).com/(.*)'),
     workbox.strategies.cacheFirst({