From f2ec6a0405a7bf590db5da5b6ef86d609ccfa0fc Mon Sep 17 00:00:00 2001
From: jjeejj <wenjunjiang1993@163.com>
Date: Sat, 5 May 2018 10:21:04 +0800
Subject: [PATCH] fix middleware/utf8.js file bug

---
 middleware/utf8.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/middleware/utf8.js b/middleware/utf8.js
index cca1a34a8..c513eb2da 100644
--- a/middleware/utf8.js
+++ b/middleware/utf8.js
@@ -2,5 +2,5 @@
 // https://stackoverflow.com/questions/1497885/remove-control-characters-from-php-string/1497928#1497928
 module.exports = async (ctx, next) => {
     await next();
-    ctx.body = ctx.body.replace(/[\x00-\x1F\x7F]/g, '');
+    ctx.body = ctx.body?ctx.body.replace(/[\x00-\x1F\x7F]/g, ''):ctx.body;
 };