<!DOCTYPE html>
<script src="../include.js"></script>
<script>
test(() => {
var doc = document.implementation.createHTMLDocument("");
doc.removeChild(doc.documentElement);
var html = doc.appendChild(doc.createElement("html"));
html.appendChild(doc.createElement("body"));
html.appendChild(doc.createElement("frameset"));
println(`BODY == ${doc.body.tagName}`);
html.firstChild.remove();
html.firstChild.remove();
html.appendChild(doc.createElement("frameset"));
html.appendChild(doc.createElement("body"));
println(`FRAMESET == ${doc.body.tagName}`);
});
</script>