Controversy?

Did the ball hit the ground or the mit? It definitely hit something and moved upward. If the webbing of the mit flattened on the ground and the ball hit that, then the Sox got the lucky break. If it hit the ground then all is good. Does anyone really know for sure. Cubs fans say it hit the mit and was a clean catch. Sox fans think it must have hit the ground. Cubs fans are just jealous that their team is not in the playoffs...