@existdissolve so as a thanks for the mention in your latest blog about Fiddle (thanks btw), I added some <meta> elements to the head for the Open Graph. Admittedly this is my first time using them but seems to be working. Since hash isn't sent to the server you have to send a URL parameter for the server to setup the meta nodes. The link from the share links have been updated but the URL should be like
http://fiddle.sencha.com/?fiddle=abc#fiddle/abc where abc us the fiddle id. Will be working on it more but pasting a URL into Facebook manually seems that it's working perfectly.