Thread:Mathmagician/@comment-4795804-20130719221823/@comment-4674838-20130720074232

Hmmmm, that's a tricky one. I'm guessing you can't do that with the interwiki prefix. It also doesn't look like you can do it with an ordinary link, like https://www.google.com

I also tried to hard-code the HTML anchor tag in a MediaWiki: page and use verbatim tags to render it as HTML, but the VSTF's spam filter blocks the  tag (to prevent spambots from spamming links)

As a last resort, it could be done with JavaScript if you really wanted.