当您使用基于OpenAM REST的身份验证时，此方法不起作用，但是当您仅使用OpenAM从您的App中进行SSO时，此方法将起作用.通过SAML或OIDC或REST SSO调用.然后，OpenAM可以充当联邦枢纽".在OpenAM上，您可以通过SAML或OIDC将身份验证委派到实际发生身份验证的上游IdP.

This does not work when you use OpenAM REST based authentication, however it would work when you just do SSO from your App with OpenAM ,e.g. via SAML or OIDC or REST SSO call. OpenAM could then act as a 'federation hub'. At OpenAM you can delegate the Authentication via SAML or OIDC to an upstream IdP where the actual authentication happens.