I'm wondering if it's possible to switch between video tracks on a given < video > element

<video id='vid'></video>

I was able to add multiple video tracks to the stream using:

vid.captureStream().addTrack(added track)

Essentially I was able to add multiple video tracks. But as soon as the element contains more than one video track, no video will play. If I remove the extra tracks, the video will play the added tracks.

I tried fooling around with the track.enabled property but it doesn't seem to do anything.

The idea is I want to load a bunch of tracks initially and switch between them. Possible?

It is essential that no video tracks are added and removed, only initially loading them.