Popup events don't trigger if the popup is Dragged Out of the Iframe
Created by: SergueiFedorov
It is a strange bug that I've been mentioned to in passing, but I could never replicate it. Turns out if you drag the popup out of the iFrame area, the events stop triggering. So if I drag the popup up to the the blue banner at the top, the close button stops working and I cannot drag it by holding holding down the mouse in any area that is outside the iFrame.