"The players have done really well and to be beaten by the last kick of the game was disappointing," Pulis told BBC Sport.
"I think we created some good chances. We had good opportunities in the first half and in the first 15 minutes of the second half.
"The fixtures have not been very kind with a game at Sunderland and then Newcastle a week later but the performances the lads have put in have been absolutely fantastic."
Palace, who are three points clear of danger in the table, continue their Premier League campaign next Saturday at home to Chelsea.