/**
* Returns array of headers
*
* @param array $file CDN file array
* @return array
*/
function _get_headers($file)
{
$allowed_headers = array('Content-Length', 'Content-Type', 'Content-Encoding', 'Content-Language', 'Content-MD5', 'Cache-Control');
$headers = parent::_get_headers($file, true);
foreach ($headers as $header => $value) {
if (!in_array($header, $allowed_headers)) {
unset($headers[$header]);
}
}
return $headers;
}
