chromium/third_party/blink/web_tests/external/wpt/html/semantics/scripting-1/the-script-element/script-type-and-language-with-params.html

<!DOCTYPE html>
<title>Script @type and @language: unknown type parameters</title>
<link rel="author" title="Ms2ger" href="mailto:[email protected]">
<link rel="author" title="Domenic Denicola" href="mailto:[email protected]">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#scriptingLanguages">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#prepare-a-script">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<!-- Setup -->
<script>
window.run1 = window.run2 = window.run3 = false;
</script>

<!-- Systems under test -->
<script type="text/javascript;charset=UTF-8">
window.run1 = true;
</script>

<script type="text/javascript;x-test=abc">
window.run2 = true;
</script>

<script language="javascript" type="text/javascript;charset=UTF-8">
window.run3 = true;
</script>

<!-- Asserts -->
<script>
test(() => {
  assert_false(window.run1);
}, "A script with a charset param in its type should not run");

test(() => {
  assert_false(window.run2);
}, "A script with an x-test param in its type should not run");

test(() => {
  assert_false(window.run3);
}, "A script with a charset param in its type should not run, even with language=javascript");
</script>