From b8c089cfaa33a94dcd29bc33217fe58ab601c8b9 Mon Sep 17 00:00:00 2001
From: Baris Soner Usakli <barisusakli@gmail.com>
Date: Thu, 27 Feb 2014 01:43:24 -0500
Subject: [PATCH] added check for invalid tags

---
 src/webserver.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/webserver.js b/src/webserver.js
index 58ea6ae479..f4869b4cbf 100644
--- a/src/webserver.js
+++ b/src/webserver.js
@@ -148,6 +148,11 @@ process.on('uncaughtException', function(err) {
 
 			// Meta Tags
 			templateValues.metaTags = defaultMetaTags.concat(options.metaTags || []).map(function(tag) {
+				if(!tag || !tag.content) {
+					winston.warn('Invalid meta tag. ' + tag);
+					return tag;
+				}
+
 				tag.content = tag.content.replace(/[&<>'"]/g, function(tag) {
 					return escapeList[tag] || tag;
 				});