don't connect to dev server when automated

dev/client.js

@@ -1,4 +1,5 @@
 /* eslint-disable no-console */
+if (!navigator.webdriver) {
   const socket = new WebSocket(
     `${(location.protocol === 'http:' ? 'ws://' : 'wss://') + location.host}/`,
   );
@@ -33,3 +34,4 @@ socket.addEventListener('message', (message) => {
   socket.addEventListener('close', () => {
     console.warn('Development server disconnected');
   });
+}