Crowd SSO integration is not enabled if Crowd has an empty SSO domain configuration

The Crowd SSO plugin will only enable SSO integration when it can. It tests:

• whether a User Directory has been set up pointing to Crowd.
• whether the remote Crowd has got a valid SSO cookie configuration.

The second test is causing problems because an empty cookie domain is a valid configuration, but the Crowd SSO plugin does consider it valid.

A workaround for now is to configure the SSO Domain in Crowd (Under Admin > General). Note that by configuring the SSO Domain in Crowd, SSO integration will only work when you access the applications over that domain. Make sure you don't set it to localhost, or all Crowd SSO integration will only work when you access the applications through localhost.