Arghh, you’re right, I should have read the README more carefully. Chaning the auth url to the Chrome one did solve the issue… Seems that the Chrome/Firefox url changed recently, I’m quite sure it worked some weeks ago with the same url as for Safari…
Anyway, thanks a lot for your helpl @peterparker, much appreciated!
@frederikrothenberger we should maybe find a way to make the note we added recently about “Local dev URL in Chrome vs Safari” in the readme more predominant?