Play web video stream CasparCG client/stream

I m new with Casper and I have simple question maybe. How I can play web video stream on CasparCG client?

normally you play stream with
PLAY 1-1 “Stream Path”

and load Web Page as
PLAY 1-1 [HTML] https://www.youtube.com/embed/nI4oa7y7kuI?autoplay=true