Okay, that was lame, I’m sorry.
“Currently, the JS SDK is returning /* Not a valid locale. */. We are working on a fix now. We will update the live status as we have more information. You can following along in https://developers.facebook.com/bugs/20327564310313″
Presumably thousands in the developer community are somehow affected (I’ve emailed Facebook for more concrete details and will update this when I have them), for example apps like Turntable.fm, Quora and TinyChat have lost their Facebook Login capabilities.
“I think this is the longest downtime i have seen of their API,” said one concerned developer.
Guess what!!! its been fixed now… but i was worth noting it down!