Aha! So you were on the right track with your first idea. There was a serialization error because it was expecting JSON and getting a string. Good catch!
If you guys could "like" my feature request, maybe it will get some more attention. https://getsatisfaction.com/apperyio/...
Just tried again, I don't even have a login button visible at the top of the home page (appery.io)
Edit: nevermind clearing my browser cache did the trick.