WebForms not redirecting to idP login page

Question

I'm working my way through the Sustainsys documentation for configuring an Asp.Net WebForms app. But I'm not getting redirected to the idP login page. What am I missing?

 <sustainsys.saml2 entityId="http://localhost/wingtip-toys" 
                   returnUrl="https://localhost/wingtip-toys" 
                   authenticateRequestSigningBehavior="Never" 
                   publicOrigin="https://localhost/wingtip-toys" 
                   validateCertificates="false">
    <identityProviders>
        <add entityId="http://localhost:8080/auth/realms/wingtip-toys" 
             signOnUrl="http://localhost:8080/auth/realms/wingtip-toys" 
             metadataLocation="http://localhost:8080/auth/realms/wingtip-toys/protocol/saml/descriptor"
             loadMetadata="true" allowUnsolicitedAuthnResponse="false">
        </add>
    </identityProviders>
    <compatibility unpackEntitiesDescriptorInIdentityProviderMetadata="true" />
</sustainsys.saml2>

The redirection just attempts to stay internal to the application, ~/login.aspx

Thanks

Answer 1

Update the forms auth tag to redirect to /Saml2/Signin.