test_bug1583110.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

  <title>test bug 1583110</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>

  <script>

    SimpleTest.waitForExplicitFinish();

    var bc = new BroadcastChannel("bug1583110");

    var pageshowCount = 0;

    bc.onmessage = function(event) {

      ok(event.data.type == "pageshow");

      ++pageshowCount;

      if (pageshowCount == 1) {

        bc.postMessage("loadnext");

      } else if (pageshowCount == 2) {

        bc.postMessage("back");

      } else {

        ok(event.data.persisted, "Should have persisted the first page");

        bc.close();

        SimpleTest.finish();

    function test() {

      window.open("file_bug1583110.html", "", "noopener");

  </script>

</head>

<body onload="test()">

<p id="display"></p>

<div id="content" style="display: none"></div>

<pre id="test"></pre>

</body>

</html>