HASSIO/Raspberry as a Chromecast device?

Can i get a webbrowser as a Chromecast device whom i can call local and cast with DashCast to a real Chromecast?

I have problems with online players/tv sites. I cannot embed them with the use of iframes or other include scripts i tried. So i was thinking… why not cast with the iPhone app from let;s say Prime Video to a fake chromecast and next try to include/embed that Chromecast on a local html file and cast that file to the real Chromecast?