Norwich manager Daniel Farke to BBC Sport: "I'm not sure that [Wickham was onside] when the ball left Zaha's foot - if you can guarantee that, we accept the decision, if not, then it's tricky. It feels tough.
"It's difficult to score against Crystal Palace, they are so well-structured and balanced, we got the first goal but missed chances - the second goal would have decided the game.
"Conceding a equaliser so late, it feels like a loss. It will be a long road and a sensation for us to stay in this league but we won't give up."
Crystal Palace manager Roy Hodgson to BBC Sport: "It was very close [for the goal]. You think it might be offside and with the technology you see someone has stuck a foot out, leaned forward and the margins are fine.
"We took chances in the end with 4-2-4 and got our reward, the boldness of the move paid off.
"Connor Wickham has been unlucky with injuries - injury after injury, and he has not been available in my time at the club. It was nice he could play again and I am looking forward to seeing him playing on Sunday."