Question about Datagroups

[bfan1256]

I see in your ngsw-config.json that you have a dataGroups section with what seems to be relative paths: /favorites and /timeline. However, these are API calls to https://pwa-workshop-api.herokuapp.com. Can you explain how this works and why instead of referencing relative routes like the /favicon.ico, it matches a URL like the font URLs? And if such is the case, will it be any different with URLs that require URL parameters? Thanks!