chromium/third_party/blink/web_tests/svg/custom/lazy-attach-use.html

<!DOCTYPE HTML>
<html>
<body>
Test for crbug.com/279434: This test passes if there is a green square below.<br/>
<div id="container"></div>
<script>
document.getElementById('container').innerHTML =
  '<svg width="150" height="150">' +
    '<rect id="g" x="200" y="200" width="100" height="100"/>' +
    '<use x="-200" y="-200" xlink:href="#g"/>' +
  '</svg>';
document.getElementById("g").setAttribute("fill", "green");
</script>
</body>
</html>