From ad1fc0e48d18b40ed2f94ec41c0d595e882573a7 Mon Sep 17 00:00:00 2001
From: josephj <josephj@users.noreply.github.com>
Date: Mon, 4 Apr 2016 22:24:55 +1000
Subject: [PATCH] Validate the first argument of parse method

The first argument type of `parse` method can only be of `String` or `HTML Element`.
---
 2/twemoji.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/2/twemoji.js b/2/twemoji.js
index a1bf9c5f..73d68083 100644
--- a/2/twemoji.js
+++ b/2/twemoji.js
@@ -515,6 +515,14 @@ var twemoji = (function (
   }
 
   function parse(what, how) {
+    // first argument can only be string or HTML Element
+    if (
+      typeof what !== 'string' &&
+      !(what && what.nodeName)
+    ) {
+      return what;
+    }
+    
     if (!how || typeof how === 'function') {
       how = {callback: how};
     }
@@ -563,4 +571,4 @@ var twemoji = (function (
     return r.join(sep || '-');
   }
 
-}());
\ No newline at end of file
+}());