The 28-year-old joined Town on a seven-day deal on Sunday afternoon, which can be extended should Hatters reach the play-offs, going straight into the side for the match at Craven Cottage, due to EFL rules.
With previous loan signing Jed Steer rupturing his Achilles and James Shea suffering knee ligament damage, third choice Harry Isted had been in goal for the 1-1 draw with Blackpool recently.
However, that left just youth teamer Jameson Horlick on the bench, the 19-year-old having no experience of men’s football under his belt, so Jones decided to act, signing the former Wycombe stopper, who cost QPR £450,000 back in 2016, and had already played 29 times for his parent club this term, including twice against Luton.
On why he chose to bring the keeper in when he did, Jones said: “When you try to get an emergency keeper, no-one in the Championship is going to lend you a goalkeeper, because they’re all using them.
"So for example, let’s use West Brom, West Brom are not going to let us have one of their two keepers, because they need them, for example.
"So you have to either go with someone that’s not ready as when you bring them in, they have to play, which is detrimental.
"Or you risk and gamble and go in with your number three, or Harry for example, and having no-one else to come on.
"Now it’s a silly rule as the Premier League, everyone has four goalkeepers and two of them never play a football game.
"But you can’t get a loan from the Premier League as apparently it gives you an unfair advantage, but it’s an emergency loan for a reason.”
It wasn’t a debut Ingram will want to remember with any fondness whatsoever though, beaten seven times, as the Cottagers ran riot, lifting the Championship title in the process.
There was little he could do with any of the goals, as although conceding twice from range, both attempts were pretty much in the bottom corner, while he was often left exposed as Fulham sliced their way through the Town back-line with alarming regularity to find the net.
Ingram did make one fine stop from Bobby De Cordova-Reid in the second period, but it was of little consolation, as Jones added: “It was a tough game for him today, because he couldn’t really do too much about a lot of them.
“They (Fulham) were excellent, we were not, but it all boils down to Saturday.”