Exiting Browser Widget

[Sannyasin Brahmanathaswami]

Use Case:  Video Viewer (YouTube) "full screen" on mobile devices

1) set up a landscape card  736w X 414h (16X9)
2) place a browser widget there that takes the entire screen
3) when navigating to this card, we dynamically set a YouTube URL to fill the widget/card

So far, so good, tested and it works

BUT

Is there a way to trigger an option to exit and return to previous card or to a menu etc.
without  shrinking the video -- so as to give us some toolbar space at the top or bottom?

I guess the question becomes simply:

how does one trap and pass the mouse down on the browser widget back the LC msg hierarchy?

ideally this behavior could be trigger when the user clicks the play or pause control inside the YouTubeVideo itself.

Possible?

BR