<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>background on body should not fill the viewport when root is not html:html</title>
<style>
html { background-color:transparent; background-image:none; }
body { background-image:url(resources/red.png); }
p { background-image:url(resources/lime.png); margin:0; }
</style>
<script>
window.onload = function() {
var oldElm = document.documentElement;
var newElm = document.createElementNS("urn:foo:bogus", "html");
while (oldElm.firstChild)
newElm.appendChild(oldElm.firstChild);
document.replaceChild(newElm, oldElm);
document.getElementsByTagName("p")[0].firstChild.data = "This line should be green and there should be no red.";
}
</script>
</head>
<body>
<p>FAIL (script didn't run)</p>
</body>
</html>