Properly set up default route

src/sw.js

@@ -1,4 +1,4 @@
-import {registerRoute} from 'workbox-routing';
+import {registerRoute,setDefaultHandler} from 'workbox-routing';
 import {CacheFirst, StaleWhileRevalidate, NetworkFirst} from 'workbox-strategies';
 import {CacheableResponsePlugin} from 'workbox-cacheable-response';
 import {ExpirationPlugin} from 'workbox-expiration';
@@ -35,7 +35,4 @@ registerRoute(
     })
   );
 
-registerRoute(
-    '/',
-    new NetworkFirst()
-)
+setDefaultHandler(new NetworkFirst());