After (CSS or app) upgrade, "Authenticating with unknown client" sometimes appears

[bjdmeest]

might be related to inrupt/solid-client-authn-js#2088

probable way forward: learn more about client-authn, to check for logging/error throwing/status change before the user is redirected to a Solid IDP. Otherwise, we might need to access some additional OIDC endpoints (but will also require some investigation)

[mvanbrab]

Yeah, I noticed this too in the following sequence:

• User leaves the viewer app while logged in
• Either the viewer app is updated or the CSS is restarted
• User visit the viewer app again

I'm working around while developing by always visiting the viewer in a private window, that I'm leaving before any update/restart.
This way, the login session does not survive in the browser, which seems to avoid the issue.
Of course, this is a workaround, not a solution...