I want to develop an offline capable progressive web application.
Looking into an example of such an app – airhorner I find that it uses specific version of the application to make sure correct version is loaded.
https://github.com/GoogleChromeLabs/airhorn/blob/main/app/sw.js#L21
However what happens with older version? Do I need to cleanup it? My app is rather large because it contains lots of data (html+js ~1.5MB) and from what I read on iOS there is limit of 50MB of cache per app.
So I wonder if I need to make sure I remove cache of older versions or I can just assume it is cache and it will be removed because it is too old?
if I do need to remove older version, where is the correct place to call it?
I see in https://stackoverflow.com/a/45468998/66522 that it is called for activate event. Can I just add another event listener on this event in addition to this one? https://github.com/GoogleChromeLabs/airhorn/blob/main/app/sw.js#L40