Embedded VIMEO video does not show the full screen icon for the player

Is this is a known issue? If yes, is it because there may be multiple iframes going on?

I’m using Vimeo videos with the player set to turn on the full screen icon and it works elsewhere but not in Coda.

Without the full screen icon available, I’m forced to either make the video very large in the doc or include a link to view outside of the doc.