chromium/third_party/blink/web_tests/http/tests/websocket/cross-origin.html

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="/js-test-resources/js-test.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script type="text/javascript">
description("WebSocket Cross Origin test");

window.jsTestIsAsync = true;

var origin;

function endTest()
{
    shouldBe("origin", '"http://127.0.0.1:8000"');
    clearTimeout(timeoutID);
    finishJSTest();
}

var url = "ws://localhost:8880/origin-test";
debug("document.domain=" + document.domain);
debug("ws.url=" + url);
var ws = new WebSocket(url);

ws.onopen = function()
{
    debug("Connected");
};

ws.onmessage = function (messageEvent)
{
    origin = messageEvent.data;
    ws.close();
};

ws.onclose = function()
{
    endTest();
};

function timeOutCallback()
{
    debug("Timed out in state: " + ws.readyState);
    endTest();
}

var timeoutID = setTimeout(timeOutCallback, 3000);

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