Get rooms working

demo/index.html

@@ -11,11 +11,13 @@
       <div id="split">
         <div>
           <div id="shiritori"></div>
-          <input id="shiritori-input" onfocusout="setTimeout(() => this.focus(), 100)" autofocus>
+          <input id="shiritori-input" autocomplete="off" autofocus>
         </div>
         <iframe src="https://jisho.org"></iframe>
       </div>
       <p id="shiritori-players"></p>
+      <button onclick="changeRoom('lobby')">Back to lobby</button>
+      Change room: <input id="room-input" autocomplete="off">
     </div>
     <script src="shiritori.js"></script>
   </body>