This is a known bug where Chrome 33 renders webfonts blank: http://blog.typekit.com/2014/02/28/new-bug-in-chrome-v33-aff... It usually goes away with a soft refresh.

This was measurably affecting our conversion rate, so we actually added a hack that forced Chrome to re-render all the text: https://gist.github.com/asolove/9553196