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Test Info: Warnings

<!DOCTYPE HTML>
<meta charset="utf-8" />
<title>HTML partial updates - declarative append</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="placeholder" contentname="placeholder">Some</div>
<template contentmethod="append"><div contentname="placeholder"> <span>content</span></div></template>
<script>
test(() => {
const placeholder = document.getElementById("placeholder");
assert_equals(placeholder.textContent, "Some content");
assert_equals(placeholder.firstChild.textContent, "Some ");
assert_equals(placeholder.firstChild.nextSibling.tagName, "SPAN");
}, "<template contentmethod=append> with text");
</script>