title: Angular-CLI proxy to backend for WebSocket
body: <p>It's perfectly working for Http, but not for WebSocket. I did not find the documentation about this. How can I do proxy for WS?</p>
  
  <pre><code>ng serve --proxy-config proxy.conf.json
  </code></pre>
  
  <p>proxy.conf.json:</p>
  
  <pre><code>{
    "/": {
      "target": "http://localhost:8080",
      "secure": false
    }
  }
  </code></pre>