chromium/third_party/blink/web_tests/fast/dom/importNode-cdata.html

<!DOCTYPE html>
<p>This is a test to verify that importNode of a CDATASection on a HTML Document works.
<div id="output"></div>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    var output = document.getElementById('output');
    var p = new DOMParser();
    var doc = p.parseFromString('<root><![CDATA[  ]]></root>', "application/xml");

    try {
        var node = document.importNode(doc.documentElement, true);
        if (node.firstChild.ownerDocument != document) {
            output.textContent = "FAILED because imported CDATASection has wrong owner document\n";
        } else {
            output.textContent = "PASSED\n";
        }
    } catch (e) {
        output.textContent = "FAILED with exception " + e + "\n";
    }
</script>