From 298a8998f31d2267dd49bd7d0417e93ec04e7de1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E3=81=A1=E3=81=8B?=
 <88967758+chika0801@users.noreply.github.com>
Date: Wed, 27 Mar 2024 13:28:32 +0800
Subject: [PATCH] Update httpupgrade.md

---
 docs/config/transports/httpupgrade.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/config/transports/httpupgrade.md b/docs/config/transports/httpupgrade.md
index 08babe712..e5ff2286e 100644
--- a/docs/config/transports/httpupgrade.md
+++ b/docs/config/transports/httpupgrade.md
@@ -42,4 +42,6 @@ HTTPUpgrade 的HTTP请求中所发送的Host，默认值为空。若服务端值
 
 自定义 HTTP 头，一个键值对，每个键表示一个 HTTP 头的名称，对应的值是字符串。
 
+默认值为空。
+
 当同时在此处与 ```"host"``` 设置 Host 时，将会使用 ```"host"``` 的值。