When embedding a Youtube playlist I am getting this error:
Blocked a frame with origin http://www.youtube.com from accessing a frame with origin http://www.mydomain.com. Protocols, domains, and ports must match.
I am not mixing HTTP with HTTPS anywhere, so I don't know why I am getting this error in the first place.
I have noticed that recently the Youtube embedded playlist is not displaying the embed image of the first video and just displaying a black screen with a 'Play All' button, and I am wondering if this is being caused by the above error.