v0.34.3

src/proxy/upstream_helpers.rs

@@ -316,14 +316,24 @@ async fn observe(State(state): State<Arc<App>>, mut request: Request, next: Next
             .get::<RedirectResponse>()
             .is_some_and(|redirect| !redirect.http3_enabled)
         {
-            response.headers_mut().remove("alt-svc");
+            crate::http3::withdraw_advertisement(
+                response.headers_mut(),
+                local,
+                transport_tls,
+                &state.active_listeners,
+            );
         }
         if response
             .extensions()
             .get::<LocalHostResponse>()
             .is_some_and(|item| !item.http3_enabled)
         {
-            response.headers_mut().remove("alt-svc");
+            crate::http3::withdraw_advertisement(
+                response.headers_mut(),
+                local,
+                transport_tls,
+                &state.active_listeners,
+            );
         }
         let global_compression = &snapshot.envelope.config.compression;
         // All scoped policies have the global codec ceiling. With no accepted