SSO rejected by login.eveonline.com - redirect URL does not match any of the configured values #2758

I don't even make it to the pyfa page. I'm using pyfa 2.66.3 with win11 latest edge. I open Character > Manage ESI Characters > Add Character.

The generic parts of the URL displayed are https://login.eveonline.com/v2/oauth/authorize?response_type=code&redirect_uri=https%3A%2F%2Fpyfa-org.github.io%2FPyfa%2Fcallback&client_id=7da6b497c92944d79036bd9a1fc061be&scope=esi-skills.read_skills.v1+esi-fittings.read_fittings.v1+esi-fittings.write_fittings.v1

This is displayed in the browser window.

{"error":"invalid_request","error_description":"The redirect URL does not match any of the configured values for this client."}

I tried deleting some files in .settings/ - pyfaESOSettings, pyfaServiceNetworkSettings, pyfaServicProxySettings. And also esi_cache/ and esi_cache.sqlite. It did not help. I do have config and log files laying around from 2015 and 2017, I've been away a while.