Fixing again... more troubleshooting.

nix-system-configs/modules/system/traefik.nix

@@ -151,6 +151,14 @@ in {
               authResponseHeaders = [
                 "X-Anubis-Authorized"
               ];
+              authRequestHeaders = [
+                "Cookie"
+                "X-Forwarded-Proto"
+                "X-Forwarded-Host"
+                "X-Forwarded-Uri"
+                "X-Forwarded-For"
+                "X-Real-Ip"
+              ];
             };
           };
         };