title: $_SERVER['HTTP_AUTHORIZATION'] is missing
body: <p>This is my <code>.htaccess</code> file:</p>
  
  <pre><code>RewriteEngine on
  
  RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
  
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  
  RewriteRule . index.php
  </code></pre>
  
  <p>Even though I have added below line to my <code>.htaccess</code> file I cannot access <code>$_SERVER['HTTP_AUTHORIZATION']</code>.</p>
  
  <pre><code>RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
  </code></pre>
  
  <p>When I'm doing <code>print_r($_SERVER)</code> I can't find <code>HTTP_AUTHORIZATION</code>.
  I have googled for an answer but none of them worked.</p>