XSD validation says my <any> is not defined-CodePudding

I'm trying to build a schema using an <xs:any /> node. When I validate it says the inserted child nodes aren't defined. I thought any allowed me to have undefined child nodes.

My schema:

<xs:schema xmlns="Policy" targetNamespace="Policy" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="Request">
    <xs:complexType>
      <xs:sequence>
        <xs:any />
      </xs:sequence>
      <xs:attribute name="Routing" type="xs:string" />
    </xs:complexType>
  </xs:element>
</xs:schema>

My XML:

<gp:Request Routing="foo" xmlns:gp="Policy">
  <bar/>
</gp:Request>

It flags the bar node. What am I doing wrong?

CodePudding user response：

You're witnessing the expected behavior for xs:any/@processContents="strict", which is the default value. When @processContents is set to strict, the element definition must exist, and the element in the XML must be valid against that declaration.

Change to

<xs:any processContents="lax" />

if you want validation to occur only if the element definition exists, or

<xs:any processContents="skip" />

if you want no validation to take place regardless of whether the element is defined in the XSD.

See also