From daa6ec768184923d5d788857ea3c5f6690e8cd20 Mon Sep 17 00:00:00 2001
From: multipleof4 <planetrenox@protonmail.com>
Date: Thu, 2 Oct 2025 11:54:33 -0700
Subject: [PATCH] Fix: Use robust JSON helper for header handling

---
 functions/api/signup.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/functions/api/signup.js b/functions/api/signup.js
index 652d006..c50afb0 100644
--- a/functions/api/signup.js
+++ b/functions/api/signup.js
@@ -1,4 +1,8 @@
-const json = (d, o) => new Response(JSON.stringify(d), { ...o, headers: { 'Content-Type': 'application/json', ...(o?.headers || {}) } });
+const json = (d, o = {}) => {
+  const h = new Headers(o.headers);
+  h.set('Content-Type', 'application/json');
+  return new Response(JSON.stringify(d), { ...o, headers: h });
+};
 
 export async function onRequestPost({ request, env }) {
   try {