title: OmniAuth & Facebook: certificate verify failed
body: <p>I've followed <a href="http://railscasts.com/episodes/235-omniauth-part-1" rel="noreferrer">Railscast #235</a> to try and set up a minimal Facebook authentication.</p>
  
  <p>I've first set up a Twitter authentication, as done by Ryan himself. That worked flawlessly.</p>
  
  <p>I then moved on to adding a Facebook login. However, after authorizing the app the redirect to <code>/auth/facebook/callback</code> fails with:</p>
  
  <pre><code>SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed
  </code></pre>
  
  <p>I am working on localhost. I didn't set up any SSL within the app. What am I doing wrong?</p>