I was on pornhub and redtube the other day and hit one of their ads, and the original popped on mobile and another one underneath from me clicking the one banner..........how the hell do they do that? I guess exo or whoever served that ad could be double dipping and popping two ads to double their money i guess.
Oh hell if popunderjs.com can't make it do it onload mobidea has two inside their affiliate area you can use for free that work on all browsers and devices onclick.........why waste the money
Here is another one
https://getpopunder.com/ and I found one that has code that will load the popunder on page load. It's tricky how they do it, they pop up a new tab where that then the page you were originally on get's loaded, then the original page under get's redirected to the other lander or offer. It's backwards but works.