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diff --git a/devtools/client/debugger/test/mochitest/doc_promise-get-rejection-stack.html b/devtools/client/debugger/test/mochitest/doc_promise-get-rejection-stack.html
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index 000000000..9fe203595
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+<!-- Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/ -->
+<!DOCTYPE html>
+
+<html>
+  <head>
+    <meta charset="utf-8"/>
+    <title>Promise test page</title>
+  </head>
+
+  <body>
+    <script type="text/javascript">
+    function makePromise() {
+      var p = returnPromise();
+      p.name = "p";
+    }
+
+    function returnPromise() {
+      return new Promise((resolve, reject) => reject("hello"));
+    }
+    </script>
+  </body>
+
+</html>