title: rails devise 401 unauthorized for a specific page
body: <p>I'm having trouble discerning why my app is returning a 401 Unauthorized. Other actions in my Institutions controller are working just fine while not signed in. However, this and another page are returning 401. If logged in, these pages work perfectly fine, but they shouldn't require being logged in. I have even gone so far as to empty the view and the action, but still the page is returning a 401. When debugging through fiddler, I simply receive a 302 Redirect.</p>
  
  <p>I've tried researching elsewhere and have tried the solutions from <a href="https://stackoverflow.com/questions/11467354/warden-authentication-recalls-401-unauthorized">Warden authentication recalls 401 Unauthorized</a> without success.</p>
  
  <p><strong>Console</strong>   </p>
  
  <pre><code>Started GET "/institutions/3" for 127.0.0.1 at 2013-04-25 14:38:15 -0400
      Processing by InstitutionsController#show as HTML
        Parameters: {"id"=&gt;"3"}
        ←[1m←[36mInstitution Load (0.0ms)←[0m  ←[1mSELECT `institutions`.* FROM `institutions` WHERE `institutions`.`id` = 3 LIMIT 1←[0m
  
  Load data...
  Load assets...
  </code></pre>
  
  <p>Then I submit the form, method is set as GET</p>
  
  <pre><code>Started GET "/visit/schedule/preview?utf8=%E2%9C%93&amp;selected_ids=4693" for 127.0.0.1 at 2013
  -04-25 14:28:53 -0400
  Processing by InstitutionsController#previewselectedvisits as HTML
    Parameters: {"utf8"=&gt;"√", "selected_ids"=&gt;"4693"}
  Completed 401 Unauthorized in 0ms
  
  Started GET "/users/sign_in" for 127.0.0.1 at 2013-04-25 14:28:53 -0400
  Processing by Devise::SessionsController#new as HTML
    Rendered devise/sessions/new.html.erb within layouts/application (15.6ms)
    Rendered auth/_login.html.erb (0.0ms)
    Rendered auth/_loginmodal.html.erb (0.0ms)
    Rendered shared/_navbarout.html.erb (0.0ms)
    Rendered shared/_navbar.html.erb (0.0ms)
    ←[1m←[36mInstitution Load (0.0ms)←[0m  ←[1mSELECT name FROM `institutions` ←[0m
    Rendered search/_searchbar.html.erb (0.0ms)
    Rendered search/_searchresults.html.erb (0.0ms)
    Rendered shared/_footer.html.erb (0.0ms)
  Completed 200 OK in 140ms (Views: 46.8ms | ActiveRecord: 15.6ms)
  
  Load assets...
  </code></pre>
  
  <p><strong>Relevant Routes</strong></p>
  
  <pre><code>devise_for :users
  match 'visit/schedule/preview' =&gt; 'institutions#previewselectedvisits', :as =&gt; :preview_visits, :via =&gt; :get
  match "institutions/:id" =&gt; "institutions#show", :as =&gt; :show_institution
  </code></pre>
  
  <p><strong>rake routes</strong></p>
  
  <pre><code>    new_user_session GET    /users/sign_in(.:format)                             devise/sessions#new
                user_session POST   /users/sign_in(.:format)                             devise/sessions#create
        destroy_user_session DELETE /users/sign_out(.:format)                            devise/sessions#destroy
               user_password POST   /users/password(.:format)                            devise/passwords#create
           new_user_password GET    /users/password/new(.:format)                        devise/passwords#new
          edit_user_password GET    /users/password/edit(.:format)                       devise/passwords#edit
                             PUT    /users/password(.:format)                            devise/passwords#update
    cancel_user_registration GET    /users/cancel(.:format)                              devise_invitable/registrations#cancel
           user_registration POST   /users(.:format)                                     devise_invitable/registrations#create
       new_user_registration GET    /users/sign_up(.:format)                             devise_invitable/registrations#new
      edit_user_registration GET    /users/edit(.:format)                                devise_invitable/registrations#edit
                             PUT    /users(.:format)                                     devise_invitable/registrations#update
                             DELETE /users(.:format)                                     devise_invitable/registrations#destroy
           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
                 user_unlock POST   /users/unlock(.:format)                              devise/unlocks#create
             new_user_unlock GET    /users/unlock/new(.:format)                          devise/unlocks#new
                             GET    /users/unlock(.:format)                              devise/unlocks#show
      accept_user_invitation GET    /users/invitation/accept(.:format)                   devise/invitations#edit
      remove_user_invitation GET    /users/invitation/remove(.:format)                   devise/invitations#destroy
             user_invitation POST   /users/invitation(.:format)                          devise/invitations#create
         new_user_invitation GET    /users/invitation/new(.:format)                      devise/invitations#new
                             PUT    /users/invitation(.:format)                          devise/invitations#update
              preview_visits GET    /visit/schedule/preview(.:format)                    institutions#previewselectedvisits
            show_institution        /institutions/:id(.:format)                          institutions#show
            vote_institution        /institutions/:id/vote/:visittype_id(.:format)       institutions#vote
                                    /institutions/:id/:offset(.:format)                  institutions#show
                institutions        /institutions(.:format)                              institutions#index
             schedule_visits        /schedule(.:format)                                  institutions#index
                auth_failure        /auth/failure(.:format)                              services#failure
                                    /auth/:service/:callback(.:format)                   services#create
                    services GET    /services(.:format)                                  services#index
                             POST   /services(.:format)                                  services#create
                     service DELETE /services/:id(.:format)                              services#destroy
                  login_user        /users/login(.:format)                               users#login
               myvisits_user        /users/myvisits(.:format)                            users#myvisits
         email_myvisits_user        /users/myvisits/email(.:format)                      users#emailmyvisits
      remove_visit_from_user        /users/removevisit/:id/:user_id(.:format)            users#rmvisit
              addvisits_user        /users/addvisits(.:format)                           users#addvisits
            changevisit_user        /users/visits/:user_id/:visit_id/:is_going(.:format) users#toggle_user_going_on_visit
          add_family_to_user        /users/invite(.:format)                              users#addfamilymember
  add_family_default_to_user        /users/profile/addfamilymemberdefault(.:format)      users#addfamilymember_default
     remove_family_from_user        /users/profile/removefamilymember(.:format)          users#rmfamilymember
         update_profile_user        /users/profile/update(.:format)                      users#update
   update_profile_other_user        /users/profile/update/:id(.:format)                  users#update
           edit_profile_user        /users/profile/edit(.:format)                        users#edit
           show_profile_user        /users/profile(.:format)                             users#show
                       users        /users(.:format)                                     users#show
                    families GET    /families(.:format)                                  families#index
                             POST   /families(.:format)                                  families#create
                  new_family GET    /families/new(.:format)                              families#new
                 edit_family GET    /families/:id/edit(.:format)                         families#edit
                      family GET    /families/:id(.:format)                              families#show
                             PUT    /families/:id(.:format)                              families#update
                             DELETE /families/:id(.:format)                              families#destroy
                      visits        /visits(.:format)                                    visits#index
                     company        /company(.:format)                                   company#aboutus
                         edu        /edu(.:format)                                       edu#index
                        root        /                                                    institutions#index
  </code></pre>
  
  <p><strong>Gemfile</strong></p>
  
  <pre><code>source 'https://rubygems.org'
  gem 'rails', '3.2.12'
  gem 'mysql2'
  gem 'execjs'
  group :assets do
    gem 'sass-rails',   '~&gt; 3.2.3'
    gem 'coffee-rails', '~&gt; 3.2.1'
    gem 'uglifier', '&gt;= 1.0.3'
  end
  
  gem 'jquery-rails'
  gem 'simple_form'
  
  gem 'devise'
  gem 'devise_invitable'
  gem 'omniauth'
  gem "omniauth-google-oauth2"
  gem 'omniauth-linkedin-oauth2'
  gem 'omniauth-facebook'
  
  #in-place editing
  gem 'best_in_place'
  
  #email template convert to inline
  gem 'roadie'
  
  #amazon web services and images
  gem 'paperclip'
  gem 'aws-sdk'
  </code></pre>