title: mod_pagespeed is rewriting but not combining
body: <p>I have the following problem.</p>
  
  <p>I installed mod_pagespeed but i am not getting the results i want!</p>
  
  <p>It does rewrite my css and changes the  to the cache url but its not combining the css files.</p>
  
  <p>I have seached the web and stackoverflow for it but did not find a solution.</p>
  
  <p>Here are the  tags</p>
  
  <pre><code>&lt;link media="all" type="text/css" href="http://domain.com/assets/css/bootstrap.min.css.pagespeed.ce.Iz3TwZXylG.css" rel="stylesheet"&gt;
  &lt;link media="all" type="text/css" href="http://domain.com/assets/css/W.jquery-ui-1.8.24.custom.css.pagespeed.cf.9yjmvb9yjz.css" rel="stylesheet"&gt;
  &lt;link media="all" type="text/css" href="http://domain.com/assets/css/W.bootstrap.extend.css.pagespeed.cf.VelsS-YQRX.css" rel="stylesheet"&gt;
  &lt;link media="all" type="text/css" href="http://domain.com/assets/css/W.base.css.pagespeed.cf.QO1yNADs1p.css" rel="stylesheet"&gt;
  &lt;link media="all" type="text/css" href="http://domain.com/assets/css/W.style.css.pagespeed.cf.tRzIhRbblc.css" rel="stylesheet"&gt;
  </code></pre>
  
  <p>As requested:</p>
  
  <pre><code>&lt;IfModule mod_rewrite.c&gt;
      RewriteEngine On
      RewriteBase /
      RewriteCond %{REQUEST_FILENAME} !-f
      RewriteCond %{REQUEST_FILENAME} !-d
      RewriteRule . /index.php [L]
  &lt;/IfModule&gt;
  </code></pre>