<!DOCTYPE html> <html> <head> <title>WebSocket Test</title> <script type="text/javascript"> var ws = new WebSocket("ws://localhost:5000"); ws.onopen = function(){ ws.send("test"); console.log("open"); } ws.onerror = function(){ console.log("error"); } ws.onclose = function(){ console.log("close"); } ws.onmessage = function(msg) { console.log("msg received:" + msg.data); var log = document.getElementById("log"); log.innerHTML += "msg received:" + msg.data; }; </script> </head> <body> <h1>WebSocket Test</h1> <div id="log"></div> </body> </html>