Feeds like:
http://estaticos.elmundo.es/mundodinero/rss/portada.xml
or
http://www.elpais.com/rss/feed.html?feedId=1022
work correctly...
BUT I can´t see:
http://www.aeat.es/aeat/jsp/RSS.jsp?categoryId=f6296991b8fef110VgnVCM1000004ef01e0aTAXC&site=56d8237c0bc1ff00VgnVCM100000d7005a80____&ver=L&channel=43f7d889b046a010VgnVCM1000004ef01e0a____&lang=es_ES
xoops 2.4.4 ISO-8859-1
xhld 3.08