document-write.tentative.html
<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./support/helper.js"></script>
<body>
<script>
promise_test(t => {
var html = TrustedHTML.escape(STRINGS.unescapedHTML);
return createFrameAndWrite(html).then(i => {
assert_equals(i.contentDocument.body.innerText, STRINGS.unescapedHTML, "innerText");
i.remove();
});
}, "document.write(TrustedHTML).");
</script>