I just went to the site and looked at it.

Your demo is confusing and not very communicative to me. Even after seeing it I couldn't figure out what you were trying to communicate with it.

I think you'd do better to have a video demo showing a specific use case, and explaining better how it works.

Also, Facebook sdk is complaining about an invalid app id.

BTW -- I am on a mac using chrome on the site, if that helps as far as the demo experience.