[Zope] container has no security assertions ?!?!

[Loren Stafford]

When I try to access the mime type of an uploaded file ....


<dtml-boundary type_expr="CVfile.headers.headers[1]"
name_expr="CVfile.filename()"
disposition=attachment encode=base64>

I get this exception...

An exception occurred in a DTML method or document.

Error type: Unauthorized
Error value: Access denied for ['Content-Disposition: form-data;
name="CVfile:file"; filename="D:\\Arrivals\\Glossary.doc"\015\012',
'Content-Type: application/msword\015\012'] because its container,
<rfc822.Message instance at 20112e0>, has no security assertions.


What does this mean? What am I doing wrong?

-- Thanks
-- Loren