Webservice Response Attachement Deserialize XOP Include Error

Hello experts,

I am consuming a non SAP Webservice. The response contains a HTML attachment and the XOP Include element can not be interpreted.

The Response:

<ns2:html_content><xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:1.34aff77e3f8494f4bf9d2b7d39f87b0ceed04383979214d0@apache.org"/></ns2:html_content>

The error message in SOAMANAGER:

CL_SXMLP_DATA_ST .. internal error 1001 and error text CX_ST_MATCH_TYPE:XSLT Exception bei Offset 431, XPath soapenv: Envelope...... html_content(1)xop:Incldue(1) Value for type y expected (falut location is 1)

The type y stands for binary (ABAP Type Mapping). The SAP System Release is 700 with level 27.

I need the HTML. What is there to do, so that SAP can interpret the response?

Thanks for the help,

Flavius