Users are getting the following message when trying to use my Facebook app:
Access Denied You don't have permission to access "http://www.myapp/?" on this server.
Reference #18.8f265dcc.1338297690.20407019
It works when going directly to the app (http://www.myapp/), but not through Facebook.
I have a secured version (https) that works both directly and through Facebook.
This was working fine last week. I haven't made an update since 5/10, and now it's just broken. Did Facebook change something???
Help!