<!DOCTYPE html> <meta charset="utf-8" /> <title>WebSocket</title> <script> var uri = "ws://127.0.0.1:8000/rpc"; function init() { websocket = new WebSocket(uri); websocket.onopen = function(evt) { document.getElementById('output').innerHTML = '<span style="color:#00CC00;">Connected</span>'; }; websocket.onclose = function(evt) { document.getElementById('output').innerHTML = '<span style="color:#FF0000;">Disconnected</span>'; }; websocket.onmessage = function(evt) { console.log(evt.data) }; websocket.onerror = function(evt) { console.warn(evt.data) }; } window.addEventListener("load", init, false); </script> <h2>WebSocket</h2> <div id="output"></div>