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diff --git a/testing/web-platform/tests/webmessaging/Channel_postMessage_event_properties.htm b/testing/web-platform/tests/webmessaging/Channel_postMessage_event_properties.htm
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index 000000000..4be7203fc
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+++ b/testing/web-platform/tests/webmessaging/Channel_postMessage_event_properties.htm
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title> postMessage(): MessageEvent properties </title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id=log></div>
+<script>
+
+    var TargetPort = null;
+    var description = "The postMessage() method - Create an event that uses the MessageEvent interface, "
+                    + "with the name message, which does not bubble and is not cancelable.";
+
+    var t = async_test("Test Description: " + description);
+
+    var channel = new MessageChannel();
+
+    TargetPort = channel.port2;
+    TargetPort.start();
+    TargetPort.addEventListener("message", t.step_func(TestMessageEvent), true);
+
+    channel.port1.postMessage("ping");
+
+    function TestMessageEvent(evt)
+    {
+        ExpectedResult = [true, "message", false, false];
+        ActualResult = [(evt instanceof MessageEvent), evt.type, evt.bubbles, evt.cancelable];
+
+        assert_array_equals(ActualResult, ExpectedResult);
+        t.done();
+    }
+</script>
+</body>
+</html>