Comment 6 for bug 1302367

The original report isn't very clear about this, so I wanted to mention my experience with this issue, which occurs not only when idling on the login page, but when idling on any page after I'm logged in.

My steps to reproduce:

1. login to horizon
2. while logged in, leave the browser window open for a long time, more than 30 minutes.
3. click on any link in the page, and you will be redirected to the login page due to session expired.
4. login again to horizon
5. you are redirected again to the login page
6. login in a third time, and now everything works.