<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <title>RIG-WS-Demo</title>
</head>

<body>
  <form onsubmit="sendGreeting(); return false;">
    <input type="text" id="name" placeholder="Your name here" autofocus>
    <input type="text" id="greeting" placeholder="Your greeting here" autofocus>
    <input type="submit" id="submit-button" disabled>
  </form>
  <ul id="eventList" style="list-style:none;padding-left:0">

  </ul>
  <script>
    const eventList = document.getElementById("event