test_postMessage_originAttributes.html

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<!DOCTYPE html>

<html>

<head>

  <title>Test window.postMessages from system principal to window with non-default originAttributes</title>

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

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

</head>

<body>

<iframe id="target-iframe"></iframe>

<script type="application/javascript">

add_task(async function() {

  let iframe = document.querySelector("#target-iframe");

  let win = SpecialPowers.wrap(iframe).contentWindow;

  let docShell = win.docShell;

  // Add private browsing ID to docShell origin and load document.

  docShell.setOriginAttributes({privateBrowsingId: 1});

  await new Promise(resolve => {

    iframe.addEventListener("load", resolve, true);

    iframe.src = SimpleTest.getTestFileURL("file_receiveMessage.html");

});

  // Set up console monitor to wait for warning.

  const expectedMessage = (

    'Attempting to post a message to window with url ' +

    '"http://mochi.test:8888/tests/dom/base/test/file_receiveMessage.html" ' +

    'and origin "http://mochi.test:8888^privateBrowsingId=1" from a system ' +

    'principal scope with mismatched origin "[System Principal]".');

  let consolePromise = new Promise(resolve => {

    SimpleTest.monitorConsole(resolve, [e => e.message == expectedMessage]);

});

  // Post to the content window via SpecialPowers' system principal scope.

  win.postMessage("Hello. o/", "http://mochi.test:8888");

  await new Promise(resolve => setTimeout(resolve, 0));

  SimpleTest.endMonitorConsole();

  await consolePromise;

  // Check that the window received and handled the message.

  is(win.document.body.textContent, "|Hello. o/",

     "Content window received the expected message");

});

</script>

</body>

</html>