How to generate Shibboleth with Empty Attribute in SAMLResponse

[Supakit Kiatrungrit]

Hi,

We are working to integrate Shibboleth with one of the vendor. There are asking us if it possible to passing the attribute with empty value in the SAMLResponse (example below) if the user not eligible to use the service.

Can anyone please advice how to configure Shibboleth IdP so it can still passing empty attribute value event the email is blank in SAMLResponse, I’m using script type attribute to set the email attribute to empty if the user is not eligible but seems like Shibboleth IdP just ignore the attribute completely if the attribute is empty instead of sending the blank attribute.

Thanks,
Nat


<Attribute Name="email_address">
   <AttributeValue></AttributeValue>
</Attribute>
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