The body of nodes containing   do not show up in XML

This also happens when you expose a default node body field

I think this seems to relate to the optimisation of check_plain() which was added as of Drupal Core 6.17

This is also true for the JSON module. Both the Body and Teaser fields are = " ", even if plaintext is checked. The raw output option will output the content, which leads me to believe that comment 3 above is correct. Of course, raw output leaves us (or the recipient of the JSON file) open to vulnerabilities.

Can this be fixed in this module, or do we need to look elsewhere or somehow override within our own app?

Also, should this be a separate issue for JSON, or is it OK here?

As I recall,   doesn't have a default entity in XML, so it needs to be defined as part of the dtd.   is the alternative, and works without the schema.

I don't get the following grep on the code where function _views_xml_xmlEntities($str) is supposed to replace entities by their numeric variant.

grep -r _views_xml_xmlEntities *
theme/views_views_xml_style.theme.inc:
   $content = ($plaintext_output ? check_plain(html_entity_decode(strip_tags($object->content))) : _views_xml_xmlEntities($object->content));

theme/views_views_xml_style.theme.inc:
  $content[$n] = ($plaintext_output ? check_plain(html_entity_decode(strip_tags($oc))) : _views_xml_xmlEntities($oc));		    		

theme/views_views_xml_style.theme.inc:
  $content = ($plaintext_output ? check_plain(html_entity_decode(strip_tags($object->raw))) : _views_xml_xmlEntities($object->raw));

theme/views_views_xml_style.theme.inc:
  foreach($object->raw as $n=>$oc) $content[$n] = ($plaintext_output ? check_plain(html_entity_decode(strip_tags($oc))) : _views_xml_xmlEntities($oc));

views_xml.module:function _views_xml_xmlEntities($str)

Only when not $check_plain the call to function _views_xml_xmlEntities($str) is done.

Based on this observation I managed to run strip tags on the node.teaser and leave XML config not to checkplain.

The attached patch solve the nbsp problem by always apply the _views_xml_xmlEntities call as we _are_ in an xml context right?

This isn't happening for me in the D7 version. As D6 has been EOL for a few years now, closing the issue as outdated.