Paul Lambert’s men impressed and took maximum points thanks to Elliott Bennett’s piledriver in the 66th minute.
Things looked good as we got on top at the start of the second half having recovered from Anthony Pilkington’s 13th-minute opener to level via Jermain Defoe’s fine finish just after the half-hour.
Benoit Assou-Ekotto was denied by John Ruddy and Gareth Bale struck the underside of the crossbar as we looked for that crucial second goal.
Bennett’s bolt from the blue hit us hard and the Canaries flew back to Norfolk with the win.
“I changed one or two around, Scott Parker wasn’t fit, so he couldn’t play,” said Harry.
“I thought we’d go with four forwards, play 4-4-2 and on paper it looks a really exciting, attacking team, but we looked too open playing that way.
"It’s alright playing a 4-4-2 if it’s a tight 4-4-2 and when you lose possession, you get back into a four (in midfield).
"We play 4-4-2 and we’re very open because we’ve got players who want to go forward and want to attack. That was a problem for us.
“Credit to Norwich, they deserved it. They worked very hard and made it difficult for us. I thought they were excellent. We were disappointing.
“They were strong. Their forwards held the ball up well and we didn’t get to grips with them. It was a difficult day for the players at the back, we weren’t at our best.
“We still had some great chances. Benoit went clean through, Gareth hit the underside of the bar, how that didn’t go in I just don’t know.
“But they were always dangerous, always a threat and I never sat there and felt comfortable.”