EAST RUTHERFORD, N.J. — The sky was falling for the New York Jets against the Buffalo Bills.

They were losing a close game to their AFC East rivals in the second half — and an overhead video camera malfunctioned, disrupting a promising drive and appearing to be a poorly timed omen.

Then, the Jets pulled off a picture-perfect comeback.

“We’re too young to flinch,” coach Robert Saleh said after New York’s stunning 20-17 victory Sunday.

The defense shut down Josh Allen, Zach Wilson threw a touchdown pass and Greg Zuerlein kicked a go-ahead 28-yard field goal with 1:43 remaining to send the Jets (6-3) into their bye-week break a half-game behind the division-leading Bills (6-2).

“I know a lot of people are going to be surprised, right?” Saleh said. “I don’t think there’s a person surprised in the locker room.”

With the game tied at 17, the Jets got the ball at their own 4 and 7:53 left — and they hit the ground running.

After marching downfield to the Bills 18 on eight straight running plays while draining the clock against a weary Buffalo defense, Wilson connected with Denzel Mims for 12 yards on third-and-5. But the drive stalled when Wilson was sacked by Damar Hamlin on third down and the Jets settled for Zuerlein’s field goal.

Allen got the ball back, but couldn’t manage much.

A holding call on Dion Dawkins wiped out a long pass to Stefon Diggs. Two plays later, Bryce Huff had a strip-sack of Allen that Buffalo recovered at its 14.

After an incompletion to Diggs, Allen launched a deep desperation pass to Gabe Davis — but rookie Sauce Gardner knocked the ball away and sealed the unlikely victory for the Jets. It also ended the Bills’ four-game winning streak.

“We expected to win this game,” Wilson said.

Wilson finished 18 of 25 for 154 yards and a TD pass to James Robinson.