scrolling behind my fancybox is enabled, why?

[flavorco]

Hello,

I'm using fancybox to display product details on my website and for some reason the page behind doesn't lock correctly like in the demos that I've seen.

You can view my page here: http://tinyurl.com/mrpwq8m

Click on a product to see the fancybox.

Overlay is { locked : true } and the website still scrolls behind the fancybox.

I'm not sure what is wrong, I've read and tried everything I could find.