Steps to reproduce:
- Load site with sample data populated.
- Log in as sample / sosecret
- Click on a username (e.g. AS) in a bloom shown in the timeline
- Click logout
- Log in as sample / sosecret
Expect to see: A logged in view of AS's profile, with a "Logout" button in the top-right.
Actually see: A 501 error page saying "Server does not support this operation."