After installing CORS the Single Sign On no longer works :

you are getting the following message after being redirected to the Application

Cross-Origin Resource Sharing (CORS) Filter: CORS origin denied


Add the URL of the Identity Provider to the CORS Configuration

<!-- ==================== CORS configuration ====================== -->
<param-value></param-value> <!-- use http: or https: depending on your configuration -->
<param-value>GET, POST, HEAD, OPTIONS, PUT, DELETE</param-value>