I have fixed the Rails issue for not handling urls with & amp ; correctly. You could check related commit. I already had created ticket for this bug http://dev.rubyonrails.org/ticket/11466. I have committed the change in my fork of koz-rails repository. I also sent pull request to other forkers of koz-rails. I hope this simple fix gets accepted as patch. (I have added new ticket with diff file as patch too http://dev.rubyonrails.org/ticket/11539)