From ebdb590469c67dfa07e77e72d2f26b2d9e0c2be9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rnar=20Hansen?= <tilbjornar@gmail.com>
Date: Mon, 18 Jun 2018 16:48:37 +0200
Subject: [PATCH] fix(utils/element-matches.js): Use `node.matches*` in place
 of `prototype.matches*` (#956)

Closes https://github.com/dequelabs/axe-core/issues/953
---
 lib/core/utils/element-matches.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/core/utils/element-matches.js b/lib/core/utils/element-matches.js
index 432109cf43..2e56877d67 100644
--- a/lib/core/utils/element-matches.js
+++ b/lib/core/utils/element-matches.js
@@ -9,10 +9,9 @@ axe.utils.matchesSelector = (function () {
 
 	var method;
 
-	function getMethod(win) {
+	function getMethod(node) {
 
 		var index, candidate,
-			elProto = win.Element.prototype,
 			candidates = [
 				'matches',
 				'matchesSelector',
@@ -24,7 +23,7 @@ axe.utils.matchesSelector = (function () {
 
 		for (index = 0; index < length; index++) {
 			candidate = candidates[index];
-			if (elProto[candidate]) {
+			if (node[candidate]) {
 				return candidate;
 			}
 		}
@@ -34,7 +33,7 @@ axe.utils.matchesSelector = (function () {
 	return function (node, selector) {
 
 		if (!method || !node[method]) {
-			method = getMethod(node.ownerDocument.defaultView);
+			method = getMethod(node);
 		}
 
 		return node[method](selector);