File: test_open_javascript_noopener.html

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<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
  </head>
  <body>
  <script>

add_task(async function test_open_javascript_noopener() {
  const topic = "test-javascript-was-run";
  function jsuri(version) {
    return `javascript:SpecialPowers.notifyObservers(null, "${topic}", "${version}");window.close()`;
  }

  let seen = [];
  function observer(_subject, _topic, data) {
    info(`got notification ${data}`);
    seen.push(data);
  }
  SpecialPowers.addObserver(observer, topic);

  isDeeply(seen, [], "seen no test notifications");
  window.open(jsuri("1"));

  // Bounce off the parent process to make sure the JS will have run.
  await SpecialPowers.spawnChrome([], () => {});

  isDeeply(seen, ["1"], "seen the opener notification");

  window.open(jsuri("2"), "", "noopener");

  // Bounce off the parent process to make sure the JS will have run.
  await SpecialPowers.spawnChrome([], () => {});

  isDeeply(seen, ["1"], "didn't get a notification from the noopener popup");

  SpecialPowers.removeObserver(observer, topic);
});

  </script>
  </body>
</html>