npm install detect-port-altyarn add detect-port-altpnpm add detect-port-alt<script src="https://fastly.jsdelivr.net/npm/detect-port-alt"></script><script src="https://unpkg.com/detect-port-alt"></script><script type="module">
import detectportalt from 'https://cdn.jsdelivr.net/npm/detect-port-alt/+esm';
</script><script type="module">
import detectportalt from 'https://cdn.skypack.dev/detect-port-alt';
</script>