diff --git a/inst/reveal.js-4.1.2/test/test-grid-navigation.html b/inst/reveal.js-4.1.2/test/test-grid-navigation.html
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+++ b/inst/reveal.js-4.1.2/test/test-grid-navigation.html
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+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Test Grid</title>
+
+		<link rel="stylesheet" href="../dist/reveal.css">
+		<link rel="stylesheet" href="../node_modules/qunit/qunit/qunit.css">
+		<script src="../node_modules/qunit/qunit/qunit.js"></script>
+	</head>
+
+	<body style="overflow: auto;">
+
+		<div id="qunit"></div>
+		<div id="qunit-fixture"></div>
+
+		<div class="reveal" style="display: none;">
+
+			<div class="slides">
+
+				<section>0</section>
+				<section>
+					<section>1.1</section>
+					<section>1.2</section>
+					<section>1.3</section>
+					<section>1.4</section>
+				</section>
+				<section>
+					<section>2.1</section>
+					<section>2.2</section>
+					<section>2.3</section>
+					<section>2.4</section>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../dist/reveal.js"></script>
+		<script>
+			Reveal.initialize().then( () => {
+
+				QUnit.module( 'Grid Navigation' );
+
+				QUnit.test( 'Disabled', function( assert ) {
+					Reveal.right();
+					Reveal.down();
+					Reveal.down();
+					assert.deepEqual( Reveal.getIndices(), { h: 1, v: 2, f: undefined }, 'Correct starting point' );
+					Reveal.right();
+					assert.deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: undefined }, 'Moves to top when going to adjacent stack' );
+				});
+
+				QUnit.test( 'Enabled', function( assert ) {
+					Reveal.configure({ navigationMode: 'grid' });
+					Reveal.slide( 0, 0 );
+					Reveal.right();
+					Reveal.down();
+					Reveal.down();
+					assert.deepEqual( Reveal.getIndices(), { h: 1, v: 2, f: undefined }, 'Correct starting point' );
+					Reveal.right();
+					assert.deepEqual( Reveal.getIndices(), { h: 2, v: 2, f: undefined }, 'Remains at same vertical index when going to adjacent stack' );
+				});
+
+			} );
+		</script>
+
+	</body>
+</html>