title: favicon.ico being rendered as part of query parameter; probable route issue
body: <p>In localhost / WEBrick configuration (Rails 3.1, ruby 1.9.2, one of my routes takes the favicon.ico file as a request parameter. It seems to be only on this one route and am not sure sure why it is doing this:</p>
  
  <p>In my routes:
  routes.rb</p>
  
  <pre><code>scope '/arc' do 
    match '/item/:id' =&gt; 'items#show', :as =&gt; :item_show  # id can be either integer or text 
  end
  </code></pre>
  
  <p>In html:</p>
  
  <pre><code>&lt;link rel="shortcut icon" href="favicon.ico" type="image/x-icon" /&gt; 
  
  Started GET "/arc/item/test-306-some-item" for 127.0.0.1 at 2012-10-18 12:18:18 -0700
  </code></pre>
  
  <p>...
  why is it doing this??? only on the above route? </p>
  
  <pre><code>Started GET "/arc/item/favicon.ico" for 127.0.0.1 at 2012-10-18 12:18:22 -0700
  Creating scope :page. Overwriting existing method Item.page.
    Processing by ItemsController#show as 
    Parameters: {"id"=&gt;"favicon"}
  </code></pre>
  
  <p>Any ideas on why it would be doing this?</p>