Location.replace doesn't work in IE10 inside a fancybox. Where is the mistake?

Question

fancyBox

On the site xn--22-8kcpzs8j.xn--p1ai , when you add a product to the cart, a fancybox window opens, in which there are two buttons "go to cart" and "continue shopping". In my case, when working through IE10, clicking on the buttons does nothing. The location.replace event hangs on the buttons. I can't figure out what the problem is: does IE10 and location.replace work or in the old version of fancybox? Where to look and where to look for a solution?