When running Web UI locally and we try to log in, we are now redirected to an address that looks something like this:
Trying to log in with this address will redirect to "http://0.0.0.0:5000/nuxeo/startup", which is not valid.
If we remove the "requestedURL" parameter, we can indeed login, however, we will be redirected once again to port 8080 (check the video).
Looking into the code, we see that this commit might introduced this bug: https://github.com/nuxeo/nuxeo-lts/commit/5c9fd3e1d54ee4d03e71c4fe83f9f82cc9221b4e
If we go through the same reproduction steps with nuxeo server v2021.3.1 (before this code was merged) we can confirm it works as expected.