I am building out ads using GSAP and ScrollTrigger. The ads are rendered within an iframe (the iframe is not cross domain, it is programmatically generated so no cross domain issues) and I want the ScrollTrigger to use the Parent window to monitor the scrolling action. Is this possible?   Here is an example snippet of the code. I have full access to the parent window. ScrollTrigger.create({ trigger: "#hideme", scroller: window.parent, start: "top top",