g1smd - 6:30 pm on Jun 22, 2012 (gmt 0)

If you need a meta refresh when people visit having clicked a link on Pinterest, then configure your site to do just that.

Serve a 301 redirect to everyone else and a meta refresh when pinterest is the referrer. There's several ways to code this - all in the page if it's a PHP (or similar) script, or at least partly in the htaccess file.