Very simple code to demonstrate Progressive Web Apps.

This demo app runs on localhost.

npx http-server -c-1 # disable cache

Then open http://localhost:8080 with Chrome.

Change version in sw.js to update app version.

• Why -c-1 to disable cache?

sw.js can be cached by HTTP Caches, then in debugging we could get unexpected behaviors. Disable the cache to simplify the problem.

MIT