Must have the Reddit Bar turned on in profile options
Instead of showing the normal links to comments and vote options (e.g. the reddit toolbar), it shows the "My Subreddits" bar that you see on other pages.
Inspection shows that the frame the reddit toolbar runs in is at this address: http://www.reddit.com/toolbar/toolbar?id=t3_1v6r0e
Which is a 404.
-EDIT- Why did you close this issue? You didn't leave any notes, you didn't request clarification or anything, you just closed it out. What's your problem?
Why was this issue closed? It still exists, and you didn't leave a note. That's very unprofessional.
I believe the fix is being pushed out as we speak.
Chill out. I'm pushing the fix now and github auto closed the issue because it was referenced in my pull request. I'll leave a note with a link to the commit once it's done.