If you redirect between www.humanitaire.ws and www.humanitary.ch, then you are jumping domains. PhpDig is set to stay within the same domain by default. See
this thread if you want to change that behavior.
Code:
http://www.humanitaire.ws/plus_info_une.php?idnews=173
http://www.humanitary.ch/plus_info_une.php?idnews=173