Log Facebook error than expose to client
Log Facebook error than expose to client

It's better to note the error via trigger_error and return a generic
error so that we don't leak potentially sensitive information.

joindin/joindin-api,asgrim/joindin-api,akrabat/joindin-api,railto/joindin-api,heiglandreas/joindin-api,heiglandreas/joindin-api,phoenixrises/joindin-api,phoenixrises/joindin-api,lornajane/joindin-api,dstockto/joindin-api,dstockto/joindin-api,phoenixrises/joindin-api,railto/joindin-api,lornajane/joindin-api,akrabat/joindin-api,dstockto/joindin-api,lornajane/joindin-api,heiglandreas/joindin-api,asgrim/joindin-api,joindin/joindin-api,joindin/joindin-api,railto/joindin-api,asgrim/joindin-api,akrabat/joindin-api