How to stretch video background to full page in Edge?

Question

css

I'm learning layout from scratch. There was such a problem. The site has a video as the background. In Chrome, Opera, IE11, the background is displayed correctly, i.e. stretches to the full length and width of the page. In Edge, the video is centered, and there are stripes of empty space on the sides. The problem is observed in Edge 16 and 17. There is no problem in Edge 15.
You can clearly see it all here: experimental site