How to change audio track of HTMLVideoElement?

Smart TV
1

I am trying to change audio track using HTMLVideoElement.audioTracks. I got 2 tracks (as should be) and changed audioTrack.enabled: first track - false, second track - true. These values ​​have changed, but video element continues to play the first track.
Tested in browser on UE65NU7400 (Tizen 4) and LT27H390 (Tizen 3).

<html>
<head>
<style>
video {
    width: 50%;
    height: 50%;
}

#error {
    color: red;
}
</style>
<script>
window.addEventListener('load', function () {
    var audioIndex = 0;
    var mediaElement = document.querySelector('video');
    var output = document.querySelector('#output');
    var outputError = document.querySelector('#error');
    var btnToggle = document.querySelector('#toggleTrack');

    mediaElement.addEventListener('error', function () {
        var err = mediaElement.error || {};
        outputError.innerHTML = err.code;
    });

    btnToggle.addEventListener('click', function () {
        output.innerHTML = '';

        audioIndex = (audioIndex + 1) % 2;

        var audioTracks = mediaElement.audioTracks || [];
        output.innerHTML += 'audioTracks: ' + audioTracks.length + '\n';

        for (var i = 0; i < audioTracks.length; i++) {
            var audioTrack = audioTracks[i];
            audioTrack.enabled = i === audioIndex;
            output.innerHTML += 'audioTracks[' + i + ']: ' + audioTrack.enabled + '\n';
        }
    });
});
</script>
</head>
<body>
<video src="1.mp4" controls></video>
<pre id="output"></pre>
<pre id="error"></pre>
<button id="toggleTrack">Toggle track</button>
</body>
</html>