title: heroku router - - at=error code=H13 desc="Connection closed without response" method=GET path=/favicon.ico
body: <p>I received this error on heroku using Rack and Sinatra:</p>
  
  <pre><code>heroku router - - at=error code=H13 desc="Connection closed without response" method=GET path=/favicon.ico
  </code></pre>
  
  <p>I fixed it by adding this line to my config.ru and adding a favicon.ico</p>
  
  <pre><code>map "/favicon.ico" do
      run Rack::File.new("./images/favicon.ico")
  end
  </code></pre>
  
  <p>Is this solution acceptable, or is there a better way to handle this? It seemed a bit odd to me that this is treated as an error H13 "connection closed without response". I wouldn't have thought a favicon.ico would always be needed.</p>