diff --git a/src/utils/headers.ts b/src/utils/headers.ts
index 529b52b..c1e3402 100644
--- a/src/utils/headers.ts
+++ b/src/utils/headers.ts
@@ -64,6 +64,7 @@ export function getAfterResponseHeaders(
     'Access-Control-Expose-Headers': '*',
     Vary: 'Origin',
     'X-Final-Destination': finalUrl,
+    ...output,
   };
 }