rails/turbolinks — pull request #3 by spadin (2012-09-26 19:43:12+00:00)
Title: `nodeName` null when you don't click a link.

I noticed this error when you click anywhere that doesn't have a link
in a `parentNode`

`Uncaught TypeError: Cannot read property 'nodeName' of null`

I believe it's because the `until` loop is going one step too far and
ends up setting `link` to `null`