Last modified: 2008-10-06 06:56:56 UTC
Normally, an html link of the form "view-source:http://example.com/" can be used to send many browsers (at least Chrome and FireFox, haven't tested others) to the rendering of the source for that page. There appears to be no way to create a link in MW wikitext that allows a link to be created to those URLs.
This is intended behavior, as $wgUrlProtocols controls which protocols can be used in internal links, and the view-source 'protocol' isn't in there by default. Add this: $wgUrlProtocols[] = 'view-source'; to LocalSettings.php and it'll work. :)