How to add saml extension element to IDP AuthnRequest?

Getting advice
,
1

Hello,
I’m integrating keycloak 20 by saml to IDP that accepts saml2:Extensions element for authentication page language, for example:
…

  <samlp:Extensions>
        <vetum xmlns="urn:vetum:SAML:2.0:extensions">
            <LG>en</LG>
        </vetum>
    </samlp:Extensions>
</samlp:AuthnRequest>

How could I configure keycloak identity provider to add this extension element to AuthRequest?

regards, Matti

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2

I am facing this same issue (using suomi.fi as idp). Did you manage to solve this somehow?

3

Unfortunately not. Extended language support was then dropped from backlog, and did not study further.

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