desktop mode redirects back to original page

app/controllers/application_controller.rb

@@ -9,7 +9,6 @@ class ApplicationController < ActionController::Base
   before_filter :set_started_at_session
   before_filter :api_check
   before_filter :set_safe_mode
-  before_filter :check_desktop_mode
   # before_filter :secure_cookies_check
   layout "default"
   force_ssl :if => :ssl_login?
@@ -22,12 +21,6 @@ class ApplicationController < ActionController::Base
 
   protected
 
-  def check_desktop_mode
-    if params[:dm]
-      cookies[:dm] = "1"
-    end
-  end
-
   def show_moderation_notice?
     CurrentUser.can_approve_posts? && (cookies[:moderated].blank? || Time.at(cookies[:moderated].to_i) < 20.hours.ago)
   end

app/controllers/static_controller.rb

@@ -1,4 +1,6 @@
 class StaticController < ApplicationController
+  before_filter :check_desktop_mode, only: :site_map
+
   def terms_of_service
   end
   
@@ -14,4 +16,18 @@ class StaticController < ApplicationController
 
   def error
   end
+
+  def site_map
+  end
+
+  private
+
+  def check_desktop_mode
+    if params[:dm]
+      cookies[:dm] = "1"
+      redirect_to :back
+      return false
+    end
+  end
+  
 end

app/views/static/_footer.html.erb

@@ -10,6 +10,6 @@
   <% end %>
   <span id="desktop-version-link">
     &ndash;
-    <%= link_to "Desktop version", posts_path(:dm => "1"), :rel => "nofollow" %>
+    <%= link_to "Desktop version", site_map_path(:dm => "1"), :rel => "nofollow" %>
   </span>
 </footer>