How to get favicon’s URL from a generic webpage in Javascript? [closed]

For people still not getting the favicon with above codes;

1. Most browsers support getting the favicon by sending a request (/favicon.ico) themselves, instead of in the html.

2. Another solution is provided by Google.

   To get the favicon for a domain, use:
   https://s2.googleusercontent.com/s2/favicons?domain=www.stackoverflow.com

   To get the favicon for an URL, use:
   https://s2.googleusercontent.com/s2/favicons?domain_url=https://www.stackoverflow.com