title: Soundcloud: The requested URL responded with HTTP code 0
body: <p>I moved my code base from one server to another - no code change, the only difference being https. I modified my app in Soundcloud developers to be <code>https://url</code> , however I continuously receive this error: </p>
  
  <pre><code>[20-Sep-2013 15:08:35 Europe/London] PHP Fatal error:  Uncaught exception 'Services_Soundcloud_Invalid_Http_Response_Code_Exception' with message 'The requested URL responded with HTTP code 0.' in /system/soundcloud/Soundcloud.php:945
  Stack trace:
  #0 /soundcloud/Soundcloud.php(298): Soundcloud-&gt;_request('https://api.sou...', Array)
  #1 /application/controllers/speaker/media.php(190): Soundcloud-&gt;credentialsFlow('soundcloud@...', '073ffbc3b66691c...')
  #2 [internal function]: Media-&gt;add_audio()
  #3 /system/core/CodeIgniter.php(359): call_user_func_array(Array, Array)
  #4 /index.php(202): require_once('/home/iwantasp/...')
  #5 {main}
    thrown in /system/soundcloud/Soundcloud.php on line 945
  </code></pre>
  
  <p>Again, this code worked perfectly on the previous server, it's merely server change.</p>
  
  <p>We have implemented the security cert that is usually the cause for this problem to no avail (<a href="https://stackoverflow.com/questions/5533084/soundcloud-oauth2-api-getting-access-token-fails">Soundcloud (Oauth2) API getting access token fails</a>) - we're on a linux system anyways so shouldn't make a difference.</p>
  
  <p>cURL also works on this server.</p>
  
  <p>What else could cause my problem?</p>