Greasy Fork

Very nice. I would suggest that buttonPlay.target be set to _self instead of _blank so that it won't needlessly open a new window.

Thanks, it used to be "_self" with iframe until some sites broke it.

See https://greasyfork.org/en/scripts/416271-play-with-mpv/diff?v1=1115895&v2=1115885

And using _self in the current page will break the functionality of the site. When you return to this page, the experience is terrible.