because jquery 1.9.0 dropped browser property support (it was deprecated since 1.3?): http://api.jquery.com/jQuery.browser/
I ran into the same issue, and the solution is right in the link you provided. In the meantime add the Migrate Plugin. Be sure to include before you include address...
You can find that question here: http://stackoverflow.com/questions/28495507/deep-linking-with-ajax-does-not-work-with-latest-jquery-address
But actually I don't use that plugin anymore, it was too buggy and response from the creators... I now use my own ajax mechanics and I think that's much better than an addon for this.