But now the problem had been fixed finally and let us hope that it does not happen again or else it will be huge loss for social media marketing companies that depend on Facebook Likes and Comments for their brands promotion as well as those developers that make apps and sell them to Facebook.
“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″
Image Source: TechCrunch