How do I redirect without www using Rails 3 / Rack?

Question

I understand there are a lot of questions that answer this. I\'m familiar with .htaccess and nginx.conf methods, but I do not have access to such t

Answer 1

A one-line version of Duke's solution. Just add to the top of routes.rb

match '(*any)' => redirect { |p, req| req.url.sub('www.', '') }, :constraints => { :host => /^www\./ }