Service workers were born to improve the user experience in the connectivity aspect.
In the offline, which is the case when the user has no connection at all to the internet and the lie-fi, which is a term related to low(for instance 2G) connection and high latency.
The first part of the talk is going through the basics of service worker, as:
* What it is
* Why should you use it
* Introduction to the service worker API/ cache API
The second part is focused on giving a real world example, in scenarios that service workers can be applied.