From e3a088ccafe27bc234cdf3e67f8218d1525b5fb1 Mon Sep 17 00:00:00 2001
From: Sergey Linnik <sergey.linnik@onlyoffice.com>
Date: Wed, 7 Jun 2023 13:29:45 +0500
Subject: [PATCH] nodejs: fix undefined header

---
 web/documentserver-example/nodejs/helpers/docManager.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/documentserver-example/nodejs/helpers/docManager.js b/web/documentserver-example/nodejs/helpers/docManager.js
index b0d062da..8dbfa9e4 100644
--- a/web/documentserver-example/nodejs/helpers/docManager.js
+++ b/web/documentserver-example/nodejs/helpers/docManager.js
@@ -178,7 +178,7 @@ docManager.prototype.getServerPath = function () {
 
 // get host address from the request
 docManager.prototype.getServerHost = function () {
-    return this.getProtocol() + "://" + (this.req.headers["x-forwarded-host"] || this.req.headers["host"]) + this.req.headers["x-forwarded-prefix"];
+    return this.getProtocol() + "://" + (this.req.headers["x-forwarded-host"] || this.req.headers["host"]) + (this.req.headers["x-forwarded-prefix"] || "");
 };
 
 // get protocol from the request