1<!DOCTYPE html>
 2<html>
 3  <head>
 4    <style>
 5      body {
 6        font-family: Tahoma, Geneva, sans-serif;
 7      }
 8
 9      div {
10        display: inline;
11      }
12    </style>
13    <script>
14      function updateStats(memuse) {
15        document.getElementById('rss').innerHTML = memuse.rss;
16        document.getElementById('heapTotal').innerHTML = memuse.heapTotal;
17        document.getElementById('heapUsed').innerHTML = memuse.heapUsed;
18      }
19
20      var host = window.document.location.host.replace(/:.*/, '');
21      var ws = new WebSocket('ws://' + host + ':8080');
22      ws.onmessage = function (event) {
23        updateStats(JSON.parse(event.data));
24      };
25    </script>
26  </head>
27  <body>
28    <strong>Server Stats</strong><br>
29    RSS: <div id='rss'></div><br>
30    Heap total: <div id='heapTotal'></div><br>
31    Heap used: <div id='heapUsed'></div><br>
32  </body>
33</html>