<!doctype html>
<meta charset=utf-8>
<title>CloseEvent: historical initialization</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<div id=log></div>
<script>
test(function() {
  assert_throws("NotSupportedError", function() {
    document.createEvent("CloseEvent")
  });
}, "createEvent(\"CloseEvent\")");

test(function() {
  assert_false("initCloseEvent" in CloseEvent.prototype);
  assert_false("initCloseEvent" in new CloseEvent('close'));
}, "initCloseEvent");
</script>