https://github.com/web-platform-tests/wpt
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Tip revision: c4742caa9ad8c4b4a00ded7c4dac2a1e1563cb4b authored by L. David Baron on 02 April 2018, 19:01:11 UTC
Sync Mozilla tests as of https://hg.mozilla.org/mozilla-central/rev/c44f60c43432d468639b5fe078420e60c13fd3de .
Tip revision: c4742ca
layout-slot-no-longer-fallback.html
<!DOCTYPE html>
<title>Layout using slot elements</title>
<link rel="author" title="Hayato Ito" href="mailto:hayato@google.com"/>
<link rel="help" href="https://dom.spec.whatwg.org/#shadow-tree-slots">
<link rel="match" href="reference/empty.html"/>
<div id="host"></div>
<script>
const host = document.querySelector('#host');
const sr = host.attachShadow({ mode: 'open' });

sr.innerHTML = '<slot><div id="fallback">Should not be displayed</div></slot>'

document.body.offsetLeft;
host.appendChild(document.createElement('div'));
</script>
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