title: Devise confirmation link not working
body: <p>Really annoyed here. In my Rails app, all emails are sent out over SMTP via Mandrill; the app itself is hosted on Heroku. Everything seems to work fine in regards to the Devise gem -- users can sign up, log in etc. However, the confirmation link included in emails DOES NOT WORK. </p>
  
  <p>It looks like this:</p>
  
  <pre><code>http://anymarket.co/users/confirmation?confirmation_token=1fde79fe312eec0efc733e77f946aba5d7b227cbdfeb54e429f9a0e6f369a5cd
  </code></pre>
  
  <p>When I click the link and check the logs, it appears that the only thing that happens is the user is directed to the root of the site. The ConfirmationsController#show action is never loaded. </p>
  
  <p>I'm really unsure of what the problem is. At the beginning of my routes.rb file I have this:</p>
  
  <pre><code>devise_for :users, :controllers =&gt; { :registrations =&gt; 'registrations' }
  default_url_options :host =&gt; "anymarket.co"
  </code></pre>
  
  <p>I override the RegistrationsController with this:</p>
  
  <pre><code>class RegistrationsController &lt; Devise::RegistrationsController
    before_filter :authenticate_user!, :except =&gt; [:after_inactive_sign_up_path_for]
  
      def new 
          respond_to do |format|
              format.js
              format.html
          end
      end
  
      def create
      build_resource(sign_up_params)
  
      resource_saved = resource.save
      yield resource if block_given?
      if resource_saved
        if resource.active_for_authentication?
                  set_flash_message :onboard, :signed_up if is_flashing_format?
          sign_up(resource_name, resource)
          respond_with resource, location: after_sign_up_path_for(resource)
        else
                  set_flash_message :onboard, :"signed_up_but_#{resource.inactive_message}" if is_flashing_format?
          expire_data_after_sign_in!
          respond_with resource, location: after_inactive_sign_up_path_for(resource)
        end
      else
        clean_up_passwords resource
        @validatable = devise_mapping.validatable?
        if @validatable
          @minimum_password_length = resource_class.password_length.min
        end
        respond_with resource
      end
    end
  
    def after_inactive_sign_up_path_for(user)
          respond_to do |format|
               format.html {render :action =&gt; "/"}
      end
    end
  
      private
  
    def sign_up_params
      params.require(:user).permit(:first_name, :last_name, :email, :password, :password_confirmation, :avatar, :school, :provider, :uid)
    end
  
    def account_update_params 
      params.require(:user).permit(:first_name, :last_name, :email, :password, :password_confirmation, :current_password, :avatar, :braintree_customer_id)
    end
  
  end
  </code></pre>
  
  <p>Any ideas what I'm doing wrong here??</p>
  
  <p><strong>Edit: result of rake routes | grep confirmation</strong></p>
  
  <pre><code>user_confirmation POST   /users/confirmation(.:format)              devise/confirmations#create                                                                  
      new_user_confirmation GET    /users/confirmation/new(.:format)          devise/confirmations#new                                                                     
                            GET    /users/confirmation(.:format)              devise/confirmations#show    
  </code></pre>
  
  <p><strong>Tailed the logs, this is what happens when a new user clicks the confirmation link</strong></p>
  
  <pre><code>Started GET "/" for 98.245.3.223 at 2014-09-10 07:29:36 +0000                                                               
  2014-09-10T07:29:36.706263+00:00 app[web.1]:   Rendered home/index.html.erb within layouts/application (104.6ms)                                                         
  2014-09-10T07:29:36.709496+00:00 app[web.1]: Completed 200 OK in 112ms (Views: 96.9ms | ActiveRecord: 12.6ms)                                                            
  2014-09-10T07:29:36.597154+00:00 app[web.1]: Processing by HomeController#index as HTML                                                                                  
  2014-09-10T07:29:36.708971+00:00 app[web.1]:   Rendered layouts/_no_cc_alert.html.erb (0.2ms)                                                                            
  2014-09-10T07:29:36.718357+00:00 heroku[router]: at=info method=GET path="/" host=www.anymarket.co request_id=a42fa3d1-f7a2-4871-92d7-14278f93cae7 fwd="98.245.3.223" dyn
  o=web.1 connect=2ms service=126ms status=200 bytes=1036  
  </code></pre>