HTTP: Skip scanner fail2ban checks when the proxy client IP can't be parsed

crates/http/src/request.rs

@@ -814,11 +814,9 @@ async fn handle_session<T: SessionStream>(inner: Arc<Inner>, session: SessionDat
         .await
     {
         if http_err.is_parse() {
-            match inner
-                .build_server()
-                .is_scanner_fail2banned(session.remote_ip)
-                .await
-            {
+            let server = inner.build_server();
+            if !server.core.jmap.http_use_forwarded {
+                match server.is_scanner_fail2banned(session.remote_ip).await {
                     Ok(true) => {
                         trc::event!(
                             Security(SecurityEvent::ScanBan),
@@ -837,6 +835,7 @@ async fn handle_session<T: SessionStream>(inner: Arc<Inner>, session: SessionDat
                     }
                 }
             }
+        }
 
         trc::event!(
             Http(trc::HttpEvent::Error),