title: iPhone website and position fixed delay on the first scroll
body: <p>I'm using css fixed position on my mobile website for a top and bottom navigation bar and I noticed a bug on my iPhone browsers (Safari and Chrome) : the position fixed is not working until the end of the first scroll... then it's working fine for all the next scrolls.</p>
  
  <p><strong>Example :</strong></p>
  
  <p><a href="http://jsbin.com/ugaraf/1" rel="nofollow">http://jsbin.com/ugaraf/1</a></p>
  
  <p><strong>Screenshots :</strong></p>
  
  <p>Bug during the first scroll down after refresh : <a href="http://goo.gl/yD5iz" rel="nofollow">http://goo.gl/yD5iz</a> </p>
  
  <p>Then working fine : <a href="http://goo.gl/mUKSn" rel="nofollow">http://goo.gl/mUKSn</a></p>
  
  <p>Do you experience the same thing ? Is there any way to fix that ?
  Thanks.</p>