Hi Tom and other schema experts, I'm trying to implement the validation using a core schema without reference. And I run into a strange issue for FS: - the core schema has no reference to FS, just (for example in the <pc> element): <xs:anyAttribute namespace="##any" processContents="lax"/> I load the core and FS schema in the validator and it looks like the FS schema is used as if I do: <pc id='1' fs:fs="bad"> I get the expected error about the invalid value. However if I do: <pc id='1' fs:badAtt='val'> I don't get an error, while badAttr is not specified in the FS schema. Any ideas? -yves