Make a static site work offline (by hand) - Progressive Web App Training
Channel: Chrome for Developers
Date: 01/05/2019

One of the best features of Progressive Web Apps is their ability to function even when offline. 

No more Downasaur!

This video explains how to use the service worker and Cache API to make a simple app work offline.

Full playlist:
https://www.youtube.com/playlist?list=PLNYkxOF6rcIB2xHBZ7opgc2Mv009X87Hh