test_sessionStorageTargetBlank.html

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<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<title>sessionStorage cloning with target=_blank and noopener</title>

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

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

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

<script type="text/javascript">

SimpleTest.waitForExplicitFinish();

async function runTest() {

  await SpecialPowers.pushPrefEnv({

    set: [

      ["test.events.async.enabled", false],

],

});

  if (isXOrigin) {

    let path = location.pathname.replace(

      "test_sessionStorageTargetBlank.html",

      "file_targetBlankChild_xorigin_wrapper.html");

    let wrapperUrl = "http://mochi.xorigin-test:8888" + path +

      "?origin=" + encodeURIComponent(location.origin);

    document.getElementById("link-opener").href = wrapperUrl;

    document.getElementById("link-noopener").href = wrapperUrl;

  sessionStorage.clear();

  sessionStorage.setItem("key1", "value1");

  // Test 1: target="_blank" (implicit noopener) — sessionStorage should NOT

  // be cloned because target=_blank implies noopener per the HTML spec.

  let bc = SpecialPowers.wrap(BroadcastChannel)

    .unpartitionedTestingChannel("sessionStorageTargetBlank");

  let resultPromise = new Promise(resolve => {

    bc.onmessage = e => {

      resolve(e.data);

});

  synthesizeMouseAtCenter(document.getElementById("link-opener"), {});

  let result = await resultPromise;

  bc.close();

  is(result.hasOpener, false, "target=_blank: should not have opener (implicit noopener)");

  is(result.key1, null, "target=_blank: key1 should not be present");

  is(result.length, 0, "target=_blank: should have 0 items");

  // Test 2: rel="noopener" target="_blank" — sessionStorage should NOT be cloned

  bc = SpecialPowers.wrap(BroadcastChannel)

    .unpartitionedTestingChannel("sessionStorageTargetBlank");

  resultPromise = new Promise(resolve => {

    bc.onmessage = e => {

      resolve(e.data);

});

  synthesizeMouseAtCenter(document.getElementById("link-noopener"), {});

  result = await resultPromise;

  bc.close();

  is(result.hasOpener, false, "noopener target=_blank: should not have opener");

  is(result.key1, null, "noopener target=_blank: key1 should not be present");

  is(result.length, 0, "noopener target=_blank: should have 0 items");

  sessionStorage.clear();

  await SpecialPowers.popPrefEnv();

  SimpleTest.finish();

</script>

</head>

<body onload="runTest();">

  <a id="link-opener" href="file_targetBlankChild.html" target="_blank">Open with opener</a>

  <br/>

  <a id="link-noopener" href="file_targetBlankChild.html" rel="noopener" target="_blank">Open without opener</a>

</body>

</html>