linquize/caddy_websocket.html

## caddy_websocket.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Caddy Websocket test</title>
</head>
<body>
<pre>
<span id="console" style="border: 1px solid black"></span>
</pre>
<script>
function replaceCrCr(str) {
	for (let i = str.indexOf('\r\n'); i >= 0; i = str.indexOf('\r\n'))
		str = str.substr(0, i) + str.substr(i + 1);
	let firstIndex = str.indexOf('\r');
	let lastIndex = str.lastIndexOf('\r');
	if (firstIndex < 0)
		return str;
	if (firstIndex !== lastIndex)
		return str.substr(0, firstIndex) + str.substr(lastIndex + 1);
	let nIndex = str.lastIndexOf('\n');
	if (nIndex >= 0)
		return str.substr(0, nIndex + 1) + str.substr(lastIndex + 1);
	return str;
}

function wsOnMessage(e) {
	let cs = document.getElementById('console');
	let data = replaceCrCr(e.data);
	let rIndex = data.indexOf('\r')
	if (rIndex >= 0) {
		let oldText = cs.innerText;
		let nIndex = oldText.lastIndexOf('\n');
		if (nIndex >= 0)
			cs.innerText = oldText.substr(0, nIndex + 1) + data.substr(rIndex + 1);
		else
			cs.innerText = data.substr(rIndex + 1);
	} else
		cs.innerText += data;
}

let ws = new WebSocket("ws://localhost:2015/test");
ws.onopen = () => document.getElementById('console').innerText += '[WS OPEN]' + '\n';
ws.onmessage = wsOnMessage;
ws.onclose = () => document.getElementById('console').innerText += '[WS CLOSED]' + '\n';
</script>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Caddy Websocket test</title>
	</head>
	<body>
	<pre>
	<span id="console" style="border: 1px solid black"></span>
	</pre>
	<script>
	function replaceCrCr(str) {
	for (let i = str.indexOf('\r\n'); i >= 0; i = str.indexOf('\r\n'))
	str = str.substr(0, i) + str.substr(i + 1);
	let firstIndex = str.indexOf('\r');
	let lastIndex = str.lastIndexOf('\r');
	if (firstIndex < 0)
	return str;
	if (firstIndex !== lastIndex)
	return str.substr(0, firstIndex) + str.substr(lastIndex + 1);
	let nIndex = str.lastIndexOf('\n');
	if (nIndex >= 0)
	return str.substr(0, nIndex + 1) + str.substr(lastIndex + 1);
	return str;
	}

	function wsOnMessage(e) {
	let cs = document.getElementById('console');
	let data = replaceCrCr(e.data);
	let rIndex = data.indexOf('\r')
	if (rIndex >= 0) {
	let oldText = cs.innerText;
	let nIndex = oldText.lastIndexOf('\n');
	if (nIndex >= 0)
	cs.innerText = oldText.substr(0, nIndex + 1) + data.substr(rIndex + 1);
	else
	cs.innerText = data.substr(rIndex + 1);
	} else
	cs.innerText += data;
	}

	let ws = new WebSocket("ws://localhost:2015/test");
	ws.onopen = () => document.getElementById('console').innerText += '[WS OPEN]' + '\n';
	ws.onmessage = wsOnMessage;
	ws.onclose = () => document.getElementById('console').innerText += '[WS CLOSED]' + '\n';
	</script>
	</body>
	</html>