SAML delegation issue

[Mm Mm]

hello everyone,

I have configured my cas deployment to use okta as delegated saml idp and every thing is works fine but after user authenticated  and redirect to cas the cas login page is shown and the user is not logged in even saml response is valid and the user attributes is returned.

[Mm Mm]

CAS Version 7.0.0 

configuration:

      saml[0]:

        client-name: saml2Test

        service-provider-entity-id: https://localhost:9443/cas/sp

        sign-authn-request: 'False'

        wants-assertions-signed: 'False'

        certificate-signature-alg: SHA256WithRSA

        private-key-password: 123456

        keystore-password: 123456

        keystore-path: file:/etc/cas/config/samltestKeystore.jks

        display-name: SAML2TEST

        metadata:

          identity-provider-metadata-path: https://dev-50669817.okta.com/app/exkelqoya7dJnbgED5d7/sso/saml/metadata

          service-provider:

            file-system:

              location: file:/etc/cas/saml2/samltest-sp-cas64-metadata.xml