Blitz - WPT: shadow-reassign-dynamic-002.html

wpt / css / css-shadow / shadow-reassign-dynamic-002.html

/css/css-shadow/shadow-reassign-dynamic-002.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Scoping: Dynamic reassignment of a slot.</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="help" href="https://drafts.csswg.org/css-shadow/#selectors-data-model">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1465572">
<link rel="match" href="reference/green-box.html"/>
<div id="host">
  FAIL
  <div style="background: green" slot="the-slot"></div>
</div>
<script>
  document.body.offsetTop;
  host.attachShadow({ mode: "open" }).innerHTML = `
    <style>::slotted(div) { width: 100px; height: 100px }</style>
    <p>Test passes if you see a single 100px by 100px green box below.</p>
    <slot>FAIL</slot>
  `;
  document.body.offsetTop;
  host.shadowRoot.querySelector("slot").setAttribute("name", "the-slot");
</script>

/css/css-shadow/reference/green-box.html

<!DOCTYPE html>
<html>
<head>
    <title>CSS Scoping Module Level 1 - A green box reference</title>
    <link rel="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"/>
</head>
<body>
    <p>Test passes if you see a single 100px by 100px green box below.</p>
    <div style="width: 100px; height: 100px; background: green;"></div>
</body>
</html>