From ab5992e56e5ea645c703343a4bba5f71e27aaf43 Mon Sep 17 00:00:00 2001
From: Todor Prikumov <tono_pr@abv.bg>
Date: Tue, 26 Jan 2016 11:58:34 +0200
Subject: [PATCH] CSS: Make sure elem.ownerDocument.defaultView is not null

Fixes gh-2866
Close gh-2867
---
 src/css/curCSS.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/css/curCSS.js b/src/css/curCSS.js
index 67fc27525..8a01e2f74 100644
--- a/src/css/curCSS.js
+++ b/src/css/curCSS.js
@@ -19,7 +19,7 @@ if ( window.getComputedStyle ) {
 		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
 		var view = elem.ownerDocument.defaultView;
 
-		if ( !view.opener ) {
+		if ( !view || !view.opener ) {
 			view = window;
 		}