third_party/web_platform_tests/webmessaging/event.origin.sub.htm

<!DOCTYPE html>
<html>
<head>
<title> event.origin returns the origin of the message </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id=log></div>

<div style="display:none">
    <iframe width="70%" onload="PostMessageTest()" src="{{location[scheme]}}://{{domains[www]}}:{{location[port]}}/webmessaging/support/ChildWindowPostMessage.htm"></iframe>
    <iframe width="70%" onload="PostMessageTest()" src="./support/ChildWindowPostMessage.htm"></iframe>
</div>

<script>


    var description = "Test Description: event.origin returns the origin of the message.";

    var t = async_test(description);

    var PORT = location.port !== "" ? ":" + location.port : "";
    var TARGET1 = document.querySelectorAll("iframe")[0];
    var TARGET2 = document.querySelectorAll("iframe")[1];
    var XORIGIN = "{{location[scheme]}}://{{domains[www]}}" + PORT;
    var SORIGIN = "{{location[scheme]}}://{{host}}" + PORT;
    var ExpectedResult = ["#1", XORIGIN, "#2", SORIGIN];
    var ActualResult = [];
    var loaded = 0;

    function PostMessageTest()
    {
        loaded++;

        if (loaded == 2)
        {
            TARGET1.contentWindow.postMessage("#1", XORIGIN);
            TARGET2.contentWindow.postMessage("#2", SORIGIN);
        }
    }

    window.onmessage = t.step_func(function(e)
    {
        // testharness.js uses postMessage so we must check what data we want to receive
        if (e.data.toString() === "#1" || e.data.toString() === "#2") {
            ActualResult.push(e.data, e.origin);
            if (ActualResult.length === ExpectedResult.length) {
                assert_array_equals(ActualResult, ExpectedResult, "ActualResult");
                t.done();
            }
        }
    });
</script>
</body>
</html>