<!DOCTYPE html>
<html>
<head>
    <script src="/js-test-resources/js-test.js"></script>
    <script src="resources/util.js"></script>
</head>
<body onload="runTest()">
<script>
    description("Tests that an empty document.referrer is left alone in third-party iframes.");
    jsTestIsAsync = true;

    function receiveMessage(event) {
        if (event.origin === "http://localhost:8000") {
            if (event.data.indexOf("PASS") === -1)
                testFailed(event.data.replace("FAIL ", ""));
            else
                testPassed(event.data.replace("PASS ", ""));
        } else
            testFailed("Received a message from an unexpected origin: " + event.origin);
        setEnableFeature(false, finishJSTest);
    }

    window.addEventListener("message", receiveMessage, false);

    function runTest() {
        if (testRunner) {
            testRunner.setUseITPDatabase(true);
            setEnableFeature(true, function() {
                let iframeElement = document.createElement("iframe");
                iframeElement.referrerPolicy = "no-referrer";
                iframeElement.src = "http://localhost:8000/resourceLoadStatistics/resources/report-document-referrer.html";
                document.body.appendChild(iframeElement);
            });
        }
    }
</script>
</body>
</html>