Service Worker registration error: Unsupported MIME type ('text/html')

Question

I\'m using create-react-app with an express server.

create-react-app has a pre-configured ServiceWorker that caches local assets (https://github.com/fac

Answer 1

Make sure that the service worker file is generated (Chrome DevTools -> Sources -> Filesystem). You may receive such an error if the service worker file is not generated at all (check your deployment script).