How to make a custom offline page using service worker in a create-react-app project?

Question

I am new to service worker and PWA. Please tell me the default options provided by service workers in create-react-app. Does it cache the app shell by default? and is it possible to add a splash screen and custom offline page without ejecting?

Answer 1

have a look at the create-react-app description:

cache the app shell: yes

splash screen: yes, defined in the default manifest.json

offline page: not by default, you have to program it yourself, or extend the app shell for offline case.