Ionic V1 + Firebase, how to test with other users

I have taken the tabs template app, added Firebase authentication to it. It works fine everywhere except in Ionic View app (both android and IOS), which gives the White Screen of Death. In-browser works, ionic run android -l -c works fine.

From reading various articles (somewhat dated), it appears to be a known fact that apps with Firebase won’t work in the View app because it does not include the inAppBrowser plugin.

A), is that still true, and

B) what is the best way to test apps with other test users, if View cannot be used to share the app with them?