Can’t easily test as this is a picture. So I can’t copy paste to test your code
Is this up on a page somewhere?
The JS Lib auto determines and adds this if no parent is specified.
Edit: Using embed everywhere (which doesn’t need the ‘v’ prefix)
https://twitch.extensions.barrycarlyon.co.uk/temp/test_28640.html
Using .player (older style)
https://twitch.extensions.barrycarlyon.co.uk/temp/test_28640_b.html