This exists here because we use it inline: https://github.com/lonelyplanet/rizzo/blob/master/app/views/layouts/core/snippets/_head_js.haml#L25

I don't know what that means, kinda lame to rely on it there. But then, I'm not totally sold on cookies being a fallback for localStorage in a grander sense than just _lpfont: true. What if we want to throw real data into localstorage like a font? A cookie would just blow up.