title: MP4 pseudo-streaming not working in JWPlayer Flash mode
body: <p>I've configured a NginX with <code>mod_mp4</code> to stream mp4 medias and I'm using JWPlayer 5 in both HTML5 and Flash modes.</p>
  
  <p>Now seeking feature works in webkit browsers which support mp4 playback but in Firefox and other browsers which JWPlayer uses Flash mode it's not working. What's wrong?</p>
  
  <p>My JWPlayer setup:</p>
  
  <pre><code>jwplayer('mediaplayer').setup({
      file: '/1.mp4',
      height: '100',
      width: '100%',
      bufferlength: 50,
      repeat: 'none',
      startparam: 'start',
      modes: [
          { 'type': 'html5' },
          { 'type': 'flash', src: '/mediaplayer/player.swf' }
      ],
      autostart: 'false'
  });
  </code></pre>