topr8 - 10:03 pm on Feb 26, 2013 (gmt 0)

ok, i've taken the plunge and decided to integrate my sites better with facebook.

first big glaring question though, i can add the open graph metatags to the head of one of my pages no problem...

however i notice on this page: https://developers.facebook.com/docs/opengraphprotocol/

they are adding an extra couple xml namespaces ... do i have to do this, and if i do, does this mean i'm going to have to convert my pages to xhtml, which i'd rather not as they are currently html5 and i'm happy with them.