I have a pop up using Cos Culture’s Modal Dialogue Pro set to appear 2 seconds after page load. Works fine in Safari, Firefox, Vivaldi on Mac OS X but not Chrome. It previews fine in RW using Chrome but doesn’t work on published site. Also works fine in Chrome for iOS.
Rather than the window popping up, the content is just there on the page - but with not very good layout.
Link is http://thelodgekent.co.uk - live site so may take the modal pop off soon.