chromium/third_party/blink/web_tests/external/wpt/svg/text/reftests/lang-attribute-dynamic.svg

<?xml version="1.0" encoding="utf-8"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml"
     class="reftest-wait">
  <metadata>
    <title>Update of lang attribute should recalculate style</title>
    <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#LangSpaceAttrs"/>
    <h:link rel="match" href="lang-attribute-dynamic-ref.svg"/>
  </metadata>
  <style>
tspan:lang(ja) { fill: lime; }
  </style>
  <text>
    <tspan x="10" y="100" font-size="90">Quick</tspan>
    <tspan x="10" y="200" font-size="90">Brown</tspan>
    <tspan x="10" y="300" font-size="90">Fox</tspan>
  </text>
  <script>
requestAnimationFrame(() => {
  requestAnimationFrame(() => {
    document.querySelectorAll('tspan')[0].setAttribute('lang', 'ja');
    document.documentElement.classList.remove('reftest-wait');
  });
});
  </script>
</svg>