Facebook Javascript API Goes Down

Facebook Javascript API, the backend system which allows developer applications and Facebook’s own apps like Likes and Comments to communicate with the data available on the social network, is down, and has been down for at least an hour as far as I can tell, begging the question, “If article falls on a blog and no one Likes it, does it make a sound?”
Okay, that was lame, I’m sorry.
The JavaScript API status on the Facebook developer blog reads:

“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 , for example apps like Turntable.fm, Quora and TinyChat have lost their Facebook Login capabilities.