iframe-no-src-local-origin-allow.html

<html>
<head>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
var t = async_test("This tests that an iframe with no src attribute uses the parent document's origin when resolving links inserted into the frame via JavaScript.");

function runTest() {
    var frame = document.getElementById('theFrame');
    assert_equals(frame.contentDocument.baseURI, document.baseURI);
    var frameDoc = frame.contentWindow.document;
    var innerFrame = frameDoc.createElement("iframe");
    innerFrame.src = "resources/iframe-no-src-set-location-pass.html";
    innerFrame.id = "innerFrame";
    innerFrame.onload = t.step_func_done(function() {
        assert_equals(frame.contentDocument.getElementById('innerFrame').contentDocument.body.innerHTML, 'PASS\n');
    });
    frameDoc.body.appendChild(innerFrame);
}

</script>
</head>
<body>
<iframe id="theFrame" onload="t.step(runTest)"></iframe>
</body>
</html>

chromium/third_party/blink/web_tests/fast/frames/iframe-no-src-local-origin-allow.html