JS error on youtube video page

[jdm]

[2020-05-27T14:26:38Z ERROR script::dom::bindings::error] Error at :0:0 uncaught exception: UO@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:3051:169
    g.h.setVolume@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:6452:59
    SO@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:3049:201
    QP@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:3124:35
    ER@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:3300:120
    g.HR.prototype.create@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:6723:113
    g.h.sd@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:6155:436
    Lka@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:2821:25
    xS@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:3370:485
    xS.create@https://www.youtube.com/s/player/4583e272/player_ias.vflset/en_US/base.js:6741:423
    ytplayer.load@https://www.youtube.com/watch?v=c2A2GzqG79I&feature=emb_title:169:68068
    @https://www.youtube.com/watch?v=c2A2GzqG79I&feature=emb_title:169:68252
    @https://www.youtube.com/watch?v=c2A2GzqG79I&feature=emb_title:169:68261

This is followed by a lot of [2020-05-27T14:27:31Z ERROR script::dom::bindings::error] Error at :0:0 uncaught exception: unknown (can't convert to string).
This is going to need some --unminify-js and local modification to uncover what's going on.