I've added the Sitecore ADFS module to Sitecore 7.2 and it works.
Using the same module on Sitecore 8 doesn't work. I can see the MSISAuth cookies from sts. When it comes to reading the
FedAuth cookie, it always returns null
Just an update on this question. What I worked out was that in Sitecore 8 the
OnAuthenticateRequest method in the
WSFederationAuthenticationModule class doesn't get fired on POST requests. It's actually in the POST request that the
SessionSecurityToken is created which is needed for the
FedAuth cookie. I've fixed the issue by overriding the