The national team of Cameroon for all its history was remembered for the time being with only one performance at the Cup of Confederations.
The two goals were scored by Vidal and and Vargas.
It took at least 30 seconds for Vargas's goal in second-half stoppage time to be confirmed after Alexia Sanchez was judged not to have been in an offside position earlier in the move.
"The only negative about today's incident with the VAR was that it is hard for the players focusing in the game to absorb, and even if it is the right decision it has an impact on their psyche".More news: Soccer player to donate to London fire victims
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Alexis Sanchez will not start for Chile in their Confederations Cup opener against Cameroon as he attempts to recover from a sprained ankle.
"Today there were many supporters in favour of Chile but all the fans were enthusiastic, which was nice", he said.
The review found Vargas offside by a matter of inches, enraging him and Vidal, who angrily complained to Skomina when he blew for half time.
Ngadeu-Ngadjui leapt higher that the Chilean defence line to head in an in-swinging freekick from the left flank but the referee ruled the goal out due to a foul on Vidal in the build-up.
The 27-year-old clipped the ball home, but over a minute after the ball had hit the net, the video assistant adjudged the Tigres forward to have been marginally offside.
The defensive wall set up by the Indomitable Lions looked to have finally been broken when Vargas dinked the ball past Cameroon's goalkeeper after a nice through ball from Arturo Vidal in first half stoppage time. "If we don't have this, we won't win the game tomorrow", Broos said at a Saturday press conference.