Why isn't fightpass working on Chromecast ?

I'm using chrome browser on my comp and castes on the my Chromecast but the screen jst is a white screen that says "UFC tv UFC allows you to watch action packed videos, and full video replays". No stream , what am I doin wrong ? Phone Post 3.0

Nvm fightpass has it's own cast button. My bad Phone Post 3.0