postMessage_onOther.html

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<!DOCTYPE html>

<html>

<head>

  <title>postMessage called through another frame</title>

  <script type="application/javascript">

    var PATH = "/tests/dom/tests/mochitest/whatwg/postMessage_onOther.html";

    function receiveMessage(evt)

      if (evt.lastEventId !== "")

        fail("unexpected non-empty lastEventId");

        return;

      switch (window.location.href)

        case "http://example.com" + PATH:

          receiveTopDomain(evt);

          break;

        case "http://test1.example.com" + PATH:

          receiveSubDomain(evt);

          break;

        default:

          fail("unexpected location");

    function fail(msg)

      window.parent.postMessage("FAIL " + msg, "*");

    // The parent frame sends "start-test" to the subdomain frame to start.

    // The subdomain frame then sets document.domain to the top domain so that

    // the top domain frame can access it.  It then sends a message to the top

    // domain frame to tell it to do likewise; once that happens, the top domain

    // frame can then call a method on the subdomain frame window, which will

    // call a method *on the top domain window* to send a message to the parent

    // window.  We thus expect to see an event whose source is the subdomain

    // window -- *not* the top domain window.  Therefore, its .origin should be:

//

    //   http://test1.example.com

//

    // and not

//

    //   http://example.com

    function receiveSubDomain(evt)

      if (evt.origin !== "http://mochi.test:8888")

        fail("wrong top-domain origin: " + evt.origin);

        return;

      if (evt.data !== "start-test")

        fail("wrong top-domain message: " + evt.origin);

        return;

      document.domain = "example.com";

      window.parent.topDomainFrame.postMessage("domain-switch",

                                               "http://example.com");

    function receiveTopDomain(evt)

      if (evt.origin !== "http://test1.example.com")

        fail("wrong subdomain origin: " + evt.origin);

        return;

      if (evt.data !== "domain-switch")

        fail("wrong subdomain message: " + evt.origin);

        return;

      if (evt.source !== window.parent.subDomainFrame)

        fail("wrong source on message from subdomain");

        return;

      document.domain = "example.com";

      window.parent.subDomainFrame.testSiblingPostMessage();

    function testSiblingPostMessage()

      window.parent.postMessage("test-finished", "http://mochi.test:8888");

    function setup()

      var target = document.getElementById("location");

      target.textContent = location.hostname + ":" + (location.port || 80);

    window.addEventListener("message", receiveMessage);

    window.addEventListener("load", setup);

  </script>

</head>

<body>

<h1 id="location">No location!</h1>

</body>

</html>