test-helper/client.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Video Player</title>
<link rel="stylesheet" href="https://cdn.plyr.io/3.4.3/plyr.css">
<script src="https://cdn.plyr.io/3.4.3/plyr.js"></script>
</head>
<body>
<video src="http://localhost:5000/api/songs/d6f56cd3-f107-4a46-8efc-d13a623fa190" id="player" controls data-plyr-config='{ "title": "This is an example video", "volume": 1, "debug": true }'></video>
<script>
var player = new Plyr('#player');
</script>
</body>
</html>