This content originally appeared on DEV Community and was authored by programORdie
This is a submission for the Web Game Challenge: One Byte Explainer
Explainer
Service workers cache key data offline, like save points in a game 
. Even if your players (users) rage-quit 
by closing the tab, they can pick up right where they left off. It’s a safety net against crashes and connection issues!
This content originally appeared on DEV Community and was authored by programORdie