Librem key video not working on safari

I don’t know if this is a good place for bug reports but I just wanted to let someone know the video does not work on Safari. I have tested this in Firefox and Chrome and it seems to work.

This might not seem like a big deal but I have introduced people to purism and when I do they usually have a macbook air or a macbook pro and run Safari.

To reproduce
Launch Safari on version 12.0
navigate to
Click Play button

actual: 2 javascript errors and the video does not play
expected the vide plays.

Also Fullscreen does not work
Launch Safari on version 12.0
navigate to
click fullscreen

actual: expands to the left half of the screen
expected: expands to full screen