Logging in with Duo MFA is no longer working in 2019 Week 12. After the push is sent and approved, it just spins forever; pressing “Continue” causes it to send another push.
The POST to https://DOMAIN/auth/mfa/challenge/status/35/ doesn’t seem to return anything useful.
The only way to log in is to hit the Duo prompt, accept the push on your phone, then in Phabricator hit Cancel (which goes to a screen saying “Do you want to log out (Cancel) (Log Out)”), then hit Cancel again, which then goes to a screen which says something like “Your Duo authentication was successful”.
Logging me in.
Internal fork from 2019 Week 12
Steps the upstream can follow on a clean install to see the same issue