Only set the parentNode on faux DOM nodes

Olical · May 28, 2017 · 1c3a9ee · 1c3a9ee
1 parent cd59275
commit 1c3a9ee
Showing 1 changed file with 4 additions and 1 deletion.
diff --git 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
 }