Codeigniter: no-referrer-when-downgrade

1. Request URL:
   http://localhost/panel/front/login/ajax/
2. Request Method:
   POST
3. Status Code:

    

   500 Internal Server Error
4. Remote Address:
   [::1]:80
5. Referrer Policy:
   no-referrer-when-downgrade

If anybody faced this type problem .. comment below.

By submitting ajax request i am getting this in Codeigniter 3.16