ThaUnknown
commented
3 years ago even tho its possible to clone/extract additional audio tracks, the way the HTML player works, it won't push any data to audio tracks which aren't active, so no audio will be played, and the only way to change which track is active, is with experimental flags x), with experimental flags however it does change the audio streams
add multi-audio support without experimental flags using capture streams, add multi-audio support to chromecast