Hi ,

We have implemented Salesforce Single Sign on with Active Directory using SAML 2.0

1. SSO login is successfull.
2. When user log out from salesforce , salesforce session ended however the ADFS session still active .
   
  
   When the user clicks Single sign on button again ,salesforce session starts without asking for username and password as ADFS session is still active.

Please help to configure "Identity Provider Logout URL" in SSO settings.