fix: return headers in all serve handlers

Author: CahidArda

platforms/express.ts

@@ -66,6 +66,11 @@ function createExpressHandler<TInitialPayload = unknown, TResult = unknown>(
     const response = await serveHandler(webRequest);
 
     res.status(response.status).json(await response.json());
+
+    // set headers
+    for (const [key, value] of response.headers.entries()) {
+      res.setHeader(key, value);
+    }
   };
 }
 

platforms/nextjs.ts

@@ -106,6 +106,11 @@ export const servePagesRouter = <TInitialPayload = unknown, TResult = unknown>(
     });
     const response = await serveHandler(request);
     res.status(response.status).json(await response.json());
+
+    // set headers
+    for (const [key, value] of response.headers.entries()) {
+      res.setHeader(key, value);
+    }
   };
 
   return {