Greasy Fork

uBlock Origin blocks the extension – where I should put this text "@@||www.youtube.com/get_video_info?*=detailpage$xhr,domain=youtube.com" ?
I tried to put it in the "My filters" and "Trust sites", but nothing changed

I don't understand it either and nobody seems to be willing to help.

This script saying me that when I open every YouTube video:

Oh, it's says that even if I turn off any AdBlockers.
Post Scriptum. Updated to the new version – the script still don't works, just don't show the Alert anymore

Ow, I haven't understood you correctly and thought you don't understand my massage. Now I see what you meant

I managed to figure out. It is because youtube started returning 404 for the API https://www.youtube.com/get_video_info?video_id=${id}&el=detailpage
You can change the script code line#234 to
`https://www.youtube.com/get_video_info?video_id=${id}&el=detailpage&html5=1&c=TVHTML5&cver=6.20180913`
to fix it.

Reference: https://stackoverflow.com/questions/67615278/get-video-info-youtube-endpoint-suddenly-returning-404-not-found