From 8fd8f6e0e501c9e46bc3e179c900d31fa5cafce1 Mon Sep 17 00:00:00 2001
From: Gray Zhang <otakustay@gmail.com>
Date: Wed, 23 Feb 2022 14:19:41 +0800
Subject: [PATCH] fix: don't override user config (#7034)

---
 packages/vite/src/node/http.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/vite/src/node/http.ts b/packages/vite/src/node/http.ts
index f1266ddb93ba12..c07fd41ba9060d 100644
--- a/packages/vite/src/node/http.ts
+++ b/packages/vite/src/node/http.ts
@@ -126,7 +126,7 @@ export async function resolveHttpsConfig(
 ): Promise<HttpsServerOptions | undefined> {
   if (!https) return undefined
 
-  const httpsOption = isObject(https) ? https : {}
+  const httpsOption = isObject(https) ? { ...https } : {}
 
   const { ca, cert, key, pfx } = httpsOption
   Object.assign(httpsOption, {