Good eye. Probably because when you're running on localhost, there is no level above for it to go up to. If it's at the root already, `../` has no effect. This would break if it were on GH Pages with a URL like <http://cfpb.github.io/cfgov-refresh/>, but we know that this won't build, anyway, so let's cross that bridge when we get the Sheer static generation up and running.