title: Why is a websocket address (ws://etc) considered URI and not URL?
body: <p>I understand that any URL is also a URI but <code>ws://example.com</code> also contains information on <em>how</em> (<code>ws</code>) and <em>where</em> (<code>example.com</code>).</p>
  <p>As I understand the main difference between URL and URI is that a URL also contains information on where to <em>locate</em> the resource.</p>