title: Favicon shows up on rails local, not on hosted app
body: <p>I put my favicon.ico in my public folder, and it shows up on my localhost, but when I check it out on the internet, <img src="https://i.stack.imgur.com/n0f6C.png" alt="other favicon"> shows up instead. My app is hosted through heroku, and the domain is provided by hover. Where is this failing?</p>
  
  <p>Also, in case this helps, here is the code I'm using to render the favicon:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
    &lt;head&gt;
      &lt;link rel="shortcut icon" href="/favicon.ico" /&gt;
      &lt;title&gt;Shoulak Predictions&lt;/title&gt;
      &lt;%= stylesheet_link_tag    'application', media: 'all' %&gt;
      &lt;%= javascript_include_tag 'application' %&gt;
      &lt;%= csrf_meta_tags %&gt;
      &lt;%= render 'layouts/shim' %&gt;    
    &lt;/head&gt;
    &lt;body&gt;
      &lt;%= render 'layouts/header' %&gt;
      &lt;div class="container"&gt;
        &lt;% flash.each do |key, value| %&gt;
          &lt;div class="alert alert-&lt;%= key %&gt;"&gt;&lt;%= value %&gt;&lt;/div&gt;
        &lt;% end %&gt;
        &lt;%= yield %&gt;
      &lt;/div&gt;
      &lt;div class="container"&gt;
          &lt;%= render 'layouts/footer' %&gt;
          &lt;%= debug(params) if Rails.env.development? %&gt;
      &lt;/div&gt;
    &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <h2>Update</h2>
  
  <p>If I go to <code>mydomain.com/favicon.ico</code>, I do download the favicon that I uploaded. ALSO, if I go to <code>therealapp.herokuapps.com</code>, it shows up. I think somehow my domain provider may be providing their own? </p>