From 6df1bf9be818b8955f94113aecc689fdf7a2e172 Mon Sep 17 00:00:00 2001
From: Martin Naumann <martin@geekonaut.de>
Date: Tue, 16 Jun 2015 23:55:21 +0200
Subject: [PATCH] CSS: Work around an IE11 fullscreen dimensions bug

(cherry-picked from 90d828bad0d6d318d73d6cf6209d9dc7ac13878c)

Fixes gh-1764
Closes gh-2401
---
 src/css.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/css.js b/src/css.js
index 9a25816a4..1ac2bc02c 100644
--- a/src/css.js
+++ b/src/css.js
@@ -120,6 +120,17 @@ function getWidthOrHeight( elem, name, extra ) {
 		styles = getStyles( elem ),
 		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
 
+	// Support: IE11 only
+	// Fix for edge case in IE 11. See gh-1764
+	if ( document.msFullscreenElement && window.top !== window ) {
+		// Support: IE11 only
+		// Running getBoundingClientRect on a disconnected node
+		// in IE throws an error.
+		if ( elem.getClientRects().length ) {
+			val = Math.round( elem.getBoundingClientRect()[ name ] * 100 );
+		}
+	}
+
 	// some non-html elements return undefined for offsetWidth, so check for null/undefined
 	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
 	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668