Question

I want to redirect any request from http://www.foo.com to foo.com. Normally, I’d use mod_rewrite to do this and just use a regular expression to match any subdomains. However, I’m using Heroku to host this app which, from what I can tell, doesn’t give me this ability.

Is there an easy way in Ruby on Rails to do this? Thanks!

Answer 1

You can add a before_filter in your ApplicationController

class ApplicationController < ActionController::Base
  before_filter :redirect_www

  def redirect_www
    if /www/.match(request.host)
      redirect_to request.protocol + request.host_with_port + request.request_uri
    end
  end
end