I entered the password/username, than it got stuck. The circle does not stop spinning. Restart of the app did not help.
Its the same with edge (i know, not supported, just wanted to try)
Internet Explorer is a legacy browser and won't be supported.
Ideally there will be Edge support one day (which could be either due to us adapting to Edge or Edge adapting to the ways of other browsers), but it has low priority. If it turns out there are a bunch of users who absolutely have to use Edge and can't possibly install Firefox or Chrome, this priority will rise.
I definatly don't want Edge / Internet Explorer support, just wanted to test whether the user registration works there ;)