From a3cf3d18e94d5d3f39db3e08fdd05a610f55d684 Mon Sep 17 00:00:00 2001
From: mrmr1993
Date: Fri, 26 Feb 2016 20:03:17 +0000
Subject: Don't try to evaluate DomUtils.isSelectable on non-elements

This stops us from throwing errors when document, window, etc. end up
being passed into DomUtils.isSelectable.
---
 lib/dom_utils.coffee | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib')

diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee
index 7f18e643..553287af 100644
--- a/lib/dom_utils.coffee
+++ b/lib/dom_utils.coffee
@@ -171,6 +171,7 @@ DomUtils =
   # An unknown type will be treated the same as "text", in the same way that the browser does.
   #
   isSelectable: (element) ->
+    return false unless element instanceof Element
     unselectableTypes = ["button", "checkbox", "color", "file", "hidden", "image", "radio", "reset", "submit"]
     (element.nodeName.toLowerCase() == "input" && unselectableTypes.indexOf(element.type) == -1) ||
         element.nodeName.toLowerCase() == "textarea" || element.isContentEditable
-- 
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