How to disable CLOSING fancybox Iframe without clicking X

Hi all,

Thank you for the amazing plugin!!! 🙂

How do I make it so that the user has to click the “X” button to close the iframe, and have that be the only way to close the frame? (i.e how do I disable user from clicking outside of fancybox and closing it)

http://wordpress.org/extend/plugins/easy-fancybox/