Support offline mode via service worker API

[timsueberkrueb]

Some progressive webapps cache their assets using service workers and can thereby work offline.
What would be needed to implement this feature in Morph and/or the webapp-container?
After a quick web search I didn't find any related functionality being exposed in the QtWebEngine API so I don't know how feasible this is at the moment.
If you have more information on this, please let me know. Thanks!

[mateosalta]

it should work I tried it on some webapps, try it out with the pokedex, or offline wiki pwa's

[mateosalta]

or are you trying to have webapps that don't have the service worker cache data?

[timsueberkrueb]

Thanks, will check 👍