heroku connection closed code=H13

Question

i deploy a simple nodejs server on heroku with ssl valid certificate

var https = require('https');
var express = require('express');
var bodyParser = require('body-parser');
var fs = require('fs');

var app = express();
var cors = require('cors');

var credentials = {
    key: fs.readFileSync('./cert/key.key'),
    cert: fs.readFileSync('./cert/cert.crt'),
    ca: fs.readFileSync('./cert/bundle.crt'),
    requestCert: true,
    rejectUnauthorized: false
};

var server = https.createServer(credentials, app);

var io = require('socket.io')(server);

app.use(cors()); 
app.use(bodyParser.json({limit: '12mb'})); 
app.use(bodyParser.urlencoded({limit: '12mb', extended: true }));

io.on('connection', function(socket){
   console.log(socket);
   socket.on('authenticate', function(data){

      console.log(data);
   });
});

var port = process.env.PORT || 8080;

server.listen(port, function () {
    console.log("server listen on", this.address());
});

server.on('clientError', function(err) {
    console.log('ERROR', err);
});

the problem is that when i start the app i received this error

ERROR { Error: socket hang up
at TLSSocket.<anonymous> (_tls_wrap.js:820:25)
at emitOne (events.js:101:20)
at TLSSocket.emit (events.js:188:7)
at Socket._handle.close (net.js:492:12)
at Socket.g (events.js:286:16)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at TCP._handle.close [as _onclose] (net.js:492:12) code: 'ECONNRESET' }

when i try to connect by chrome to my server i received this error in server side

2017-01-05T15:03:43.465542+00:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/socket.io/?EIO=3&transport=polling&t=LblA3JZ" host=www.myapp.com request_id=51982ce9-99e3-4677-acb4-a0f14eb88999 fwd="95.251.90.218" dyno=web.1 connect=1ms service=2ms status=503 bytes=0
2017-01-05T15:03:43.460178+00:00 app[web.1]: ERROR Error: 140414443095936:error:1407609C:SSL routines:SSL23_GET_CLIENT_HELLO:http request:../deps/openssl/openssl/ssl/s23_srvr.c:394:

and this error in the client side

XMLHttpRequest cannot load https://www.myapp.com/socket.io/?EIO=3&transport=polling&t=LblDK25. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://192.168.0.8:8100' is therefore not allowed access. The response had HTTP status code 503.

at first moment i thought that was socket.io but the problem persist also with normal REST operation. now i think that i a SSL problem. i create a valid certificate with godaddy provider and i upload it to heroku with success. in fact if i try to connect to my app through https connection the certificate is valid. maybe the problem is when i try to upload this certificates into my nodejs app.someone can help me? thanks in advance

Answer 1

You should use an HTTP server instead of HTTPS. SSL termination occurs at Heroku's load balancers; they send your app plain (non-SSL) traffic, so your app should create a non-HTTPS server.

HTTPS + SSL on Heroku - Node + Express