<Extensions>
<!-- Extension to permit the SP to receive IdP discovery responses. -->
<idpdisc:DiscoveryResponse xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
- Binding="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
+ index="1" Binding="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
Location="https://sp.example.org/Shibboleth.sso/DS"/>
</Extensions>