The 20-year-old was in solid form, making one outstanding late save from Steed Malbranque to maintain the visitors' slender advantage.
Grant told whufc.com: "He is a good player. Ruud [Boffin] is also a very good goalkeeper, as is Peter [Kurucz] who is now injured. We have very good young goalkeepers and it's part of our vision about the club. Firstly because of the financial situation, but also because we want to give opportunities to young, hungry players who want to develop the club."