web-bundle/subresource-loading/supports-webbundle.https.tentative.html

<!DOCTYPE html>
<title>HTMLScriptElement.supports webbundle</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(() => {
  assert_true(HTMLScriptElement.supports('webbundle'));
}, 'HTMLScriptElement.supports returns true for \'webbundle\'');

test(() => {
  assert_false(HTMLScriptElement.supports(' webbundle'));
  assert_false(HTMLScriptElement.supports('webbundle '));
  assert_false(HTMLScriptElement.supports('WEBBUNDLE'));
}, 'HTMLScriptElement.supports returns false for unsupported types');
</script>