title: The whole page become blank after redirecting with @header() in IE6
body: <p>It's a login page. After validating, the user is redirected to home page:</p>
  
  <pre><code>@header("Content-type: text/html; charset=utf-8");
  @header('Location: index.php');
  @header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
  @header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past  
  </code></pre>
  
  <p>But the page becomes blank if IE6! How? And it happens only for the first time; afterwards it'll work normally!</p>