From b3c0a7f71d0b351755b97858ad47de4e9a373606 Mon Sep 17 00:00:00 2001
From: Scott González <scott.gonzalez@gmail.com>
Date: Fri, 21 Apr 2017 14:49:52 -0400
Subject: Widget: Handle `Object.create(null)` for options objects

Fixes #15179
Closes gh-1809
---
 ui/widget.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'ui')

diff --git a/ui/widget.js b/ui/widget.js
index f87675712..011396811 100644
--- a/ui/widget.js
+++ b/ui/widget.js
@@ -26,6 +26,7 @@
 }( function( $ ) {
 
 var widgetUuid = 0;
+var widgetHasOwnProperty = Array.prototype.hasOwnProperty;
 var widgetSlice = Array.prototype.slice;
 
 $.cleanData = ( function( orig ) {
@@ -183,7 +184,7 @@ $.widget.extend = function( target ) {
 	for ( ; inputIndex < inputLength; inputIndex++ ) {
 		for ( key in input[ inputIndex ] ) {
 			value = input[ inputIndex ][ key ];
-			if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
+			if ( widgetHasOwnProperty.call( input[ inputIndex ], key ) && value !== undefined ) {
 
 				// Clone objects
 				if ( $.isPlainObject( value ) ) {
-- 
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