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<!DOCTYPE html>
<html lang="en">
<style>
pre {
background: #EEE;
border: 1px solid #CCC;
padding: 10px;
}
#page-wrapper {
border-top: 5px solid #69c773;
margin: 1em auto;
width: 950px;
}
</style>
<script>
window.onload = function() {
function $(selector) {
return document.querySelector(selector);
}
var socket = new WebSocket('ws://localhost:7890');
socket.onopen = function(event) {
$('#messages').innerHTML = 'Connected<br>';
};
socket.onmessage = function(event) {
$('#messages').innerHTML += 'Received:<br>' + event.data + '<br>';
};
socket.onclose = function(event) {
$('#messages').innerHTML = 'Disconnected ' + event.reason;
};
$('#submit').onclick = function(e) {
socket.send($('input').value);
$('#messages').innerHTML += 'Sent:<br>' + $('input').value + '<br>';
$('input').value = '';
};
};
</script>
<div id="page-wrapper">
<pre id="messages">Connecting...</pre>
<input id="message" required>
<button id="submit">Send Message</button>
</div>
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