attribute-default-value-after-removal.html

<!DOCTYPE html>
<div style="width: 100px">
  <svg viewBox="0 0 100 100">
    <rect width="100" height="100" fill="green"/>
  </svg>
</div>
<script>
document.querySelector('svg').setAttribute('width', 200);
document.querySelector('svg').removeAttribute('width');
</script>

chromium/third_party/blink/web_tests/svg/custom/attribute-default-value-after-removal.html