Responsive video won';t close when done playing

Has anyone figured out how to close a video when it's finished playing on mobile on Lectora 16? On iPhone, the device's native player takes over the video and plays it on top of the browser, leaving the viewer with a black screen when the video ends. I've tried hiding it On Done Playing, and adding an event to the video to close it, but both these work at the browser level, not on the video itself.