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chromium/third_party/blink/web_tests/images/move-image-to-new-document.html 

<!DOCTYPE html>
<title>Test that when images are moved to a new document, a new load fires.</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<body>
<script type="text/javascript">
if (window.testRunner)
    testRunner.setPluginsEnabled(false);
for (var elementType of [ "img", "input", "object", "embed" ]) {
    async_test(function(t) {
        var subframe = document.createElement("iframe");
        document.body.appendChild(subframe);
        var subdocument = subframe.contentDocument;
        var element = document.createElement(elementType);
        if (elementType == "input")
            element.type = "image";
        element.data = "resources/test-load.jpg";
        element.src = "resources/test-load.jpg";
        document.body.appendChild(element);
        element.onload = t.step_func(function() {
            document.body.removeChild(element);
            subdocument.body.appendChild(element);
            element.onload = t.step_func_done(function() {
                subdocument.body.removeChild(element);
            });
        });
    }, document.title + ', ' + elementType);
}
</script>