The Cottagers' opener early in the second half was rather fortuitous as Joachim Andersen and Ola Aina combined from a corner to flick the ball over the line.
However, the home side equalised just minutes later when Ashley Barnes collected Jay Rodriguez's excellent centre and fed the ball past Alphonse Areola.
The result ensured Sean Dyche's side preserved their eight-point advantage over their opponents in the Premier League.
The result ensured Sean Dyche's side preserved their eight-point advantage over their opponents in the Premier League.