documentcloud/backbone — pull request #1273 by roelvanhintum (2012-05-02 13:17:39+00:00)
Title: Fixed the infinite loops when both pushState and hashChange are unavailable.

When starting the Backbone.History, the page refreshes when both
pashState and hashChange are unavailable. The solution is to navigate
only when the fragment is changed.

This makes it possible to use a Backbone app in an old browser without
adding hashes to the url.