Referrer header is a request header from where the traffic originated in a site. A referrer policy header controls which referrer information should be included with the request. This server has found that HTTP header specifies unsafe referrer policy. This application does not recognize the referrer policies. If there is no adequate prevention in place the URL and even sensitive information contained in the URL will be leaked to the cross site.The lack of Referrer Policy header might affect privacy of the users and sites itself.
The impact on the applications:-
The following are the solution for the vulnerability:-