<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/plyr/dist/plyr.css"/>
<video id="player" playsinline controls>
  <source id="src" />
</video>
<script src="https://cdn.jsdelivr.net/npm/plyr"></script>
<script>
  {//?u=
    let url = location.search.substring(3);
    let d = document;
    let e = d.getElementById("src");
    e.src = url;
  }
  const player = new Plyr('#player');
</script>