protected boolean signSamlLogoutResponseFor(final SamlRegisteredService registeredService) {
        if (registeredService.getSignLogoutResponse().isUndefined()) {
            return configurationContext.getCasProperties().getAuthn().getSamlIdp().getLogout().isSignLogoutResponse();
        }
        return registeredService.getSignLogoutResponse().isTrue();
    }
This is {@link SamlIdPSingleLogoutRedirectionStrategy}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-saml-idp-web/src/main/java/org/apereo/cas/support/saml/web/idp/profile/slo/SamlIdPSingleLogoutRedirectionStrategy.java