title: Sinatra doesn't provide any output
body: <p>I've recently started messing around with Sinatra and I've come across something that I can't quite wrap my head around.</p>
  
  <pre><code>get '/lnb/:date' do
      CSV.foreach("/home/dlind/code/noak/lnb/#{params[:date]}_lnb.csv") do |post|
          "#{post}"
      end
  end
  </code></pre>
  
  <p>This yields a blank page when visiting <code>http://localhost/lnb/2013-11-23</code> for example. Could anyone care to explain why this is?</p>
  
  <p>Regards,</p>
  
  <p>David</p>