Javascript Sockets (failed: Error during WebSocket handshake: net::ERR_CONNECTION_RESET)
Question
I am trying to create a simple program to send a message to a socket in plain text. The sender is a webpage in javascript using websocket and the server is a C program. I don't have any control over the C code but I have been assured by the codes owners that I can use simple javascript to send the message. My code is as follows:
<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
//initialize the websocket ws
var ws;
//Open the socket connection
function openSock() {
//test for Websocket compatibility in the browser
if ("WebSocket" in window) {
// log socket attempt
console.log("Attempting to open socket!");
//open web socket ws
ws = new WebSocket("ws://192.168.6.222:11000/echo");
} else { // else the browser doesn't support WebSocket
//Websocket is not supported
alert("APS NOT supported by your Browser!");
}
}
//send the command to socket ws
function sendCommand() {
console.log("Attempting to Send Message");
ws.send("your message here");
}
//close the socket ws
function closeSock() {
console.log("Closing Socket");
// close socket ws
ws.close();
}
</script>
</head>
<body>
<div id="sse">
<a href="javascript:openSock()"><input type=submit value="open"></a>
<a href="javascript:sendCommand()"><input type=submit value="send"></a>
<a href="javascript:closeSock()"><input type=submit value="close"></a>
</div>
</body>
</html>
When I click the connect button I get this error:
WebSocket connection to 'ws://192.168.6.222:11000/echo' failed: Error during WebSocket handshake: net::ERR_CONNECTION_RESET
I have checked the firewall and the port seems to be open. After spending a fair amount of time troubleshooting the server (making sure it is running and on the network, etc.) I am wondering if I did something wrong with this client side code.
From my limited knowledge and the reading I have done this looks correct but any help is welcome.
3 answers
solution1
3 2020-05-28 14:28:50
This is probably super late but I just ran into a similar problem while using Django channels. I fixed it by adding a slash ( / ) at the end of the URL.
ws = new WebSocket("ws://192.168.6.222:11000/echo/");
solution2
2 ACCPTED 2015-12-09 17:58:51
How does the server side of the connection look like? Maybe you are using a faulty WebSocket Lib which does not provide a valid handshake.
Because when testing the client against ws://echo.websocket.org everything seems to work perfectly fine. This strongly suggests that the websocket client is not source of the problem.
solution3
0 2021-05-18 10:55:59
确保您的队列运行正常，就我而言，这就是问题所在
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