v0.34.12

src/proxy/forward/success_prepare.rs

@@ -24,6 +24,7 @@ if cache_settings.allows_stale_error_status(response.status()) {
         "cache_stale_if_error",
         upstream_started.elapsed(),
         &active_backend.id,
+        Some(response.status()),
     ) {
         return stale;
     }