AND-3194 - Added additional condition to check if there is an iFrame in the article OR if there is an interactive class present, due the following error message when an iframe is contained within a figure element as is the case where articles contain interactive forms - Blocked a frame with origin null from accessing a frame with origin http://interactive.guim.co.uk.  The frame requesting access has a protocol of file, the frame being accessed has a protocol of http. Protocols must match.