$headers{'-content-length'} = $size;
$headers{'-vary'} = 'negotiate,accept-language';
$headers{'-last-modified'} = strftime("%a, %d %b %Y %T %z", localtime($mtime));
$headers{'-content-length'} = $size;
$headers{'-vary'} = 'negotiate,accept-language';
$headers{'-last-modified'} = strftime("%a, %d %b %Y %T %z", localtime($mtime));