Progressive Web Application

A simple Progressive Web Application (PWA) using Service Worker (Workbox).

Test Offline

1. Open the URL in a new tab
2. Turn off the network/wi-fi
3. Reload the page

Test Online

1. Re-establish the network/wi-fi
2. Reload the page

The Service Worker will detect a non-connection to the Internet and will load the page previewed for this case. Turning on the network will make it work as before.