source: trunk/www.guidonia.net/wp/wp-content/plugins/wp-super-cache/wp-cache-base.php@ 44

<?php
$known_headers = array("Last-Modified", "Expires", "Content-Type", "Content-type", "X-Pingback", "ETag", "Cache-Control", "Pragma");

if (!class_exists('CacheMeta')) {
        class CacheMeta {
                var $dynamic = false;
                var $headers = array();
                var $uri = '';
                var $post = 0;
        }
}

?>