From deaa1deff40c167708233d4e02ef76f2ebdc5f90 Mon Sep 17 00:00:00 2001
From: Marcy Sutton <marcy.sutton@deque.com>
Date: Tue, 20 Mar 2018 12:43:04 -0700
Subject: [PATCH] fix: allow mixed casing of caption/summary

Closes https://github.com/dequelabs/axe-core/issues/771
---
 lib/checks/tables/same-caption-summary.js  |  7 +++++--
 test/checks/tables/same-caption-summary.js | 14 ++++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/lib/checks/tables/same-caption-summary.js b/lib/checks/tables/same-caption-summary.js
index d8bdd9772f..7158ee728b 100644
--- a/lib/checks/tables/same-caption-summary.js
+++ b/lib/checks/tables/same-caption-summary.js
@@ -1,2 +1,5 @@
-// passing node.caption to accessibleText instead of using the logic in accessibleTextVirtual on virtualNode
-return !!(node.summary && node.caption) && node.summary === axe.commons.text.accessibleText(node.caption);
+// passing node.caption to accessibleText instead of using
+// the logic in accessibleTextVirtual on virtualNode
+let summary = node.summary;
+let caption = node.caption;
+return !!(summary && caption) && summary.toLowerCase() === axe.commons.text.accessibleText(caption).toLowerCase();
diff --git a/test/checks/tables/same-caption-summary.js b/test/checks/tables/same-caption-summary.js
index 3756d7381e..a17b6284ad 100644
--- a/test/checks/tables/same-caption-summary.js
+++ b/test/checks/tables/same-caption-summary.js
@@ -42,6 +42,20 @@ describe('same-caption-summary', function () {
 		assert.isTrue(checks['same-caption-summary'].evaluate.apply(checkContext, params));
 	});
 
+	it('should return true if summary and caption are the same with mixed casing', function () {
+		var params = checkSetup('<table summary="My Table" id="target">' +
+			'<caption> my table </caption>' +
+			'<thead>' +
+				'<tr><th scope="col">Head</th></tr>' +
+			'</thead>' +
+			'<tbody>' +
+				'<tr><td>Data</td></tr>' +
+			'</tbody>' +
+		'</table>');
+
+		assert.isTrue(checks['same-caption-summary'].evaluate.apply(checkContext, params));
+	});
+
 	(shadowSupport.v1 ? it : xit)('should match slotted caption elements', function () {
 		var params = shadowCheckSetup(
 			'<div>' +