Call me silly for running NoScript in this day and age of Javascript on every page but it's not often that I get a moment of "WTF" when visiting a site.
This one gave me just that. Took me a scroll down the page, then up again, then halfway towards pressing backspace... Then I remembered! Whitelist NoScript temporarily!
Normally this comes pretty naturally to me because I can easily spot that a site is depending on Javascript or not.
So my mileage varied.