Plugins and scripts from 2013-14 no work anymore with new browsers. or not work correct - we have right now thousands mobile systems and browsers. I use this service. (ref)
getpopunder.com - easy install any plugin like a
Head, Footer and Post Injections add code from getpopunder and forget about problems.
Is easy also to setup a mobile or desktop ads, system os and what is important countries.
few minutes of work and you can setup a campaigns for a usa mobile users and uk desktop from one website.