From dff5dab161da51c9103461c15d7e35116a0c6e2f Mon Sep 17 00:00:00 2001
From: MoyuScript <i@moyu.moe>
Date: Wed, 23 Nov 2011 14:06:00 +0100
Subject: [PATCH] accessing nodeType may throw an exception

---
 src/Preload.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/Preload.js b/src/Preload.js
index 878cdf1..03fab51 100644
--- a/src/Preload.js
+++ b/src/Preload.js
@@ -156,7 +156,8 @@ html2canvas.Preload = function(element, opts){
         contentsLen = contents.length,
         background_image,
         src,
-        img;
+        img,
+        elNodeType = false;
         
         for (i = 0;  i < contentsLen; i+=1 ){
             // var ignRe = new RegExp("("+this.ignoreElements+")");
@@ -166,8 +167,14 @@ html2canvas.Preload = function(element, opts){
         }
             
         // }
-          
-        if (el.nodeType === 1 || el.nodeType === undefined){
+        try {
+            elNodeType = el.nodeType;
+        } catch (ex) {
+            elNodeType = false;
+            html2canvas.log("html2canvas: failed to access some element's nodeType - Exception: " + ex.message);
+        }
+
+        if (elNodeType === 1 || elNodeType === undefined){
             
             background_image = html2canvas.Util.getCSS(el, 'backgroundImage');