From e4bd1bba8ebadc3248cc7c1232064a93f2326118 Mon Sep 17 00:00:00 2001
From: Victor Berchet <victor@suumit.com>
Date: Fri, 20 Dec 2024 10:04:44 +0100
Subject: [PATCH] fix(cloudflare): No body for 101, 204, 205, or 304 status
 codes

---
 .../open-next/src/overrides/wrappers/cloudflare-node.ts     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/open-next/src/overrides/wrappers/cloudflare-node.ts b/packages/open-next/src/overrides/wrappers/cloudflare-node.ts
index 1640b6bb8..d00227f4e 100644
--- a/packages/open-next/src/overrides/wrappers/cloudflare-node.ts
+++ b/packages/open-next/src/overrides/wrappers/cloudflare-node.ts
@@ -7,6 +7,9 @@ import type { Wrapper, WrapperHandler } from "types/overrides";
 
 import { Writable } from "node:stream";
 
+// Response with null body status (101, 204, 205, or 304) cannot have a body.
+const NULL_BODY_STATUSES = new Set([101, 204, 205, 304]);
+
 const handler: WrapperHandler<InternalEvent, InternalResult> =
   async (handler, converter) =>
   async (
@@ -55,7 +58,8 @@ const handler: WrapperHandler<InternalEvent, InternalResult> =
             controller.enqueue(Uint8Array.from(chunk.chunk ?? chunk));
           },
         });
-        const response = new Response(readable, {
+        const body = NULL_BODY_STATUSES.has(statusCode) ? null : readable;
+        const response = new Response(body, {
           status: statusCode,
           headers: responseHeaders,
         });