From db1a94c34db7626ac7b1ad4a4e480cabf5666261 Mon Sep 17 00:00:00 2001
From: "stefan.r" <stefan.r@551886.no-reply.drupal.org>
Date: Thu, 23 Jan 2020 22:17:22 +0000
Subject: [PATCH] Deal with refNode being set to null in 2_5_3

---
 .../WCAG2AAA/Sniffs/Principle2/Guideline2_5/2_5_3.js     | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Standards/WCAG2AAA/Sniffs/Principle2/Guideline2_5/2_5_3.js b/Standards/WCAG2AAA/Sniffs/Principle2/Guideline2_5/2_5_3.js
index 773e9b80..e3dfa194 100644
--- a/Standards/WCAG2AAA/Sniffs/Principle2/Guideline2_5/2_5_3.js
+++ b/Standards/WCAG2AAA/Sniffs/Principle2/Guideline2_5/2_5_3.js
@@ -56,12 +56,15 @@ _global.HTMLCS_WCAG2AAA_Sniffs_Principle2_Guideline2_5_2_5_3 = {
                 visibleLabel = HTMLCS.util.getTextContent(element);
                 var labelFor = element.getAttribute("for");
                 if (labelFor) {
+                    var refNode = undefined;
                     if (top.ownerDocument) {
-                        var refNode = top.ownerDocument.getElementById(labelFor);
+                        refNode = top.ownerDocument.getElementById(labelFor);
                     } else {
-                        var refNode = top.getElementById(labelFor);
+                        refNode = top.getElementById(labelFor);
+                    }
+                    if (!!refNode) {
+                      accessibleName = HTMLCS.util.getAccessibleName(refNode, top);
                     }
-                    accessibleName = HTMLCS.util.getAccessibleName(refNode, top);
                 }
                 break;
             case "input":