With Cobalt RC_9 I tried the following
cobalt --url=https://www.youtube.com/tv?launch=preload&additionalDataUrl=http%3A%2F%2Flocalhost%3A8080%2FdialData%2FYouTube
but the application does not seem to load in background.
Does Cobalt support YouTube TV preload API yet?
How is the preload API actually supposed to work?