From 1c3a9ee872ccddca49efd8a24b4f419c24da199b Mon Sep 17 00:00:00 2001
From: Oliver Caldwell <olliec87@gmail.com>
Date: Sun, 28 May 2017 15:58:16 +0100
Subject: [PATCH] Only set the parentNode on faux DOM nodes

---
 lib/Element.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/Element.js b/lib/Element.js
index 7c19a22..27e8242 100644
--- a/lib/Element.js
+++ b/lib/Element.js
@@ -157,7 +157,10 @@ Element.prototype.removeEventListener = function (name, fn) {
 }
 
 Element.prototype.appendChild = function (el) {
-  el.parentNode = this
+  if (el instanceof Element) {
+    el.parentNode = this
+  }
+
   this.childNodes.push(el)
   return el
 }