I have this:

function linkify(text) {
    var urlRegex =/(https?://[^s]+)/g;
    return text.replace(urlRegex, function(url) {
        return '<a href="' + url + '">' + url + '</a>';
    });
  }

when I try this function like this:

console.log(linkify("https://music.youtube.com/watch?v=rM4_leT8ZFU&si=Gy16TSfzwbENshHZ"));

I get this:

<a href="<a href="https://music.youtube.com/watch?v=rM4_leT8ZFU&si=Gy16TSfzwbENshHZ">https://music.youtube.com/watch?v=rM4_leT8ZFU&si=Gy16TSfzwbENshHZ</a>"><a href="https://music.youtube.com/watch?v=rM4_leT8ZFU&si=Gy16TSfzwbENshHZ">https://music.youtube.com/watch?v=rM4_leT8ZFU&si=Gy16TSfzwbENshHZ</a></a>

so the subdomains may be:

www or music or any other