<audio>
and <video>
tags without Javascript.video/mp4; codecs="av01.0.0M.10.0.000"
<video preload="auto" controls="controls" autoplay="autoplay">
<source src="http://download.opencontent.netflix.com.s3.amazonaws.com/AV1/Chimera/Chimera-AV1-10bit-768x432-1090kbps.mp4" type='video/mp4; codecs="av01.0.0M.10.0.000"'>
</video>
HTMLMediaElement.canPlayType('video/mp4; codecs="av01.0.0M.10.0.000"')
→ MediaSource.isTypeSupported('video/mp4; codecs="av01.0.0M.10.0.000"')
→