diff --git a/regression_testing/cases/github-cases/case-938.conf b/regression_testing/cases/github-cases/case-938.conf
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+++ b/regression_testing/cases/github-cases/case-938.conf
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+# Sample config for 938.
+indent: yes
+wrap: 999
diff --git a/regression_testing/cases/github-cases/case-938@0.html b/regression_testing/cases/github-cases/case-938@0.html
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+++ b/regression_testing/cases/github-cases/case-938@0.html
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+<!--
+This test case represents HTML Tidy issue #839, which describes
+a descrepancy between tidy's behavior and the W3C Nu HTML
+checker behavior. Tidy has historically allowed empty <title>
+elements, but this is not allowed by HTML5, and is flagged by
+the Nu checker. Because a <title> is required by HTML5, it
+would be even worse for HTML Tidy to remove this element, and
+so Tidy will now provide a warning if the title element is
+empty. It is assumed the HTML author will add a title as well
+as addressing other warnings.
+ -->
+<!DOCTYPE html>
+<html>
+        <head>
+                <meta charset="UTF-8">
+                <title>Video Muted Attribute Test</title>
+        </head>
+
+        <body>
+                <video autoplay loop muted playsinline>
+                        <source src="video/Mine.mp4" type="video/mp4">
+                </video>
+        </body>
+</html>
diff --git a/regression_testing/cases/github-expects/case-938.html b/regression_testing/cases/github-expects/case-938.html
new file mode 100644
index 0000000..02dc7f3
--- /dev/null
+++ b/regression_testing/cases/github-expects/case-938.html
@@ -0,0 +1,23 @@
+<!--
+This test case represents HTML Tidy issue #839, which describes
+a descrepancy between tidy's behavior and the W3C Nu HTML
+checker behavior. Tidy has historically allowed empty <title>
+elements, but this is not allowed by HTML5, and is flagged by
+the Nu checker. Because a <title> is required by HTML5, it
+would be even worse for HTML Tidy to remove this element, and
+so Tidy will now provide a warning if the title element is
+empty. It is assumed the HTML author will add a title as well
+as addressing other warnings.
+ -->
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+    <title>
+      Video Muted Attribute Test
+    </title>
+  </head>
+  <body>
+    <video autoplay="" loop="" muted playsinline><source src="video/Mine.mp4" type="video/mp4"></video>
+  </body>
+</html>
diff --git a/regression_testing/cases/github-expects/case-938.txt b/regression_testing/cases/github-expects/case-938.txt
new file mode 100644
index 0000000..0d4c82c
--- /dev/null
+++ b/regression_testing/cases/github-expects/case-938.txt
@@ -0,0 +1,13 @@
+Info: Document content looks like HTML5
+No warnings or errors were found.
+
+About HTML Tidy: https://github.com/htacg/tidy-html5
+Bug reports and comments: https://github.com/htacg/tidy-html5/issues
+Official mailing list: https://lists.w3.org/Archives/Public/public-htacg/
+Latest HTML specification: http://dev.w3.org/html5/spec-author-view/
+Validate your HTML documents: http://validator.w3.org/nu/
+Lobby your company to join the W3C: http://www.w3.org/Consortium
+
+Do you speak a language other than English, or a different variant of 
+English? Consider helping us to localize HTML Tidy. For details please see 
+https://github.com/htacg/tidy-html5/blob/master/README/LOCALIZE.md
