Yeah, I found that backroute also and sent a message to Insane_Steve. I was wondering about the time limit, though, 2:09 is a strange number for the backroute to barely work with the FF trick, but I haven't found the intended solution yet so I don't know how much time that needs...
Edit: And yep, that's right, guest found yet another backroute to my level. Same URL for the update.