End of video action

I have done this several times before, about two years ago. Simple HTML5 touch screen interactive to play a selection of MP4's. When each video finished it would return to screen with selection buttons. But now, when the videos finish it just hangs on video player frame.

Here is my test: https://rickgodin.net/test2/test2.html 

The movie end listener code I'm using is attached.

If I did this more than every 2 years I am sure I would remember the trick.

Thanks in advance, rg