In the previous post I showed how the files of a web application can be cached locally to shorten the start up time and enable offline use.

I have been aware of Progressive Web Apps (PWA) for quite some time now beacause I am closely following the development of the Ionic Framework and they have been very actively supporting this idea.

In the first part I described how progressive web apps will change the way mobile applications are made. In this second part I will go into more details with working code samples for implementing offline…