Either with subdomain or mashlib if you use a not existing podname `https://<non existing podname>.solidcommunity.net:8443` - you receive a 401 - then you can login with https://solidcommunity.net:8443/.account/login/password/ - and be redirected to the non existing pod URL `https://<non existing podname>.solidcommunity.net:8443` This seems very strange for a user. Could CSS consider that the pod do not exist and return something like `pod not found` ?