<!--
  Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE html>
<meta charset=utf-8>
<title>Test for performance observer</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
'use strict';
SpecialPowers.pushPrefEnv({"set": [["dom.enable_performance_observer", true]]},
                          function() {
                            window.open("performance_observer.html");
                          });
</script>