elinks/test/js/assert/URL.html

<script>
console.error("URL.html");
var url = new URL('https://www.example.com/cats');
console.assert(url.pathname === '/cats', url.pathname);
console.assert(url.protocol === 'https:', url.protocol);
console.assert(url.hostname === 'www.example.com', url.hostname);
console.exit();
</script>