Error on launching https server express

Question

I am running node v4.1.1 and npm 2.14.4 on Mac OS X. For the same express app I want to launch an http and https server. The http one runs just perfect, but the other crashes with the consequent error:

if (process.features.tls_npn && !opts.NPNProtocols) {
                                       ^
TypeError: Cannot read property 'NPNProtocols' of undefined
at new Server (https.js:13:40)
at Object.exports.createServer (https.js:37:10)

The following code runs the whole express app and invokes http methods:

#!/usr/bin/env node

var app = require('./src')
, config = require('./config')
, cmd = require('commander')
, http = require('http')
, https = require('https')
, path = require('path')

cmd
.version('0.1.42')
.option('-p, --port <n>', 'Port to start the HTTP server', parseInt)
.parse(process.argv)

// Launch server with web sockets
var server = http.createServer(app)
var sslServer = https.createServer({
    key: fs.readFileSync('ryans-ley.pem'),
    cert: fs.readFileSync('ryans-cert.pem')
}, app)

// Listen on provided port, on all network interfaces.
server.listen(config.port || cmd.port, function () {
  console.log('http marketplace started on %s:%s', 
    server.address().address,
    server.address().port)
})

sslServer.listen(443, function () {
  console.log('https marketplace started on %s:%s', 
    sslServer.address().address,
    sslServer.address().port)
})

Those certs have been generated with this guide: https://nodejs.org/api/tls.html#tls_tls_ssl.

If I run the same code, without providing options to https.createServer it does not crush. However when trying to reach https://localhost the browser answers with ERR_SSL_VERSION_OR_CIPHER_MISMATCH(chrome browser)

With curl

curl https://localhost
curl: (35) Unknown SSL protocol error in connection to localhost:-9824

Same issue, except, that I have an "official" cert/key pair. Did you have any progress on it? — david, Dec 04 '15 at 13:38
Yes, it happened to be a typo. It was really silent though. if key + cert are well paired and those are perfectly readable, there should be no errors. Double check paths. — jsdario, Dec 18 '15 at 13:22

score 2 · Accepted Answer · answered Jun 02 '16 at 15:13

2

Cert or chain were not valid, but the error did not reflect it. So to anyone going through the same problem, please try with other key pair.

answered Jun 02 '16 at 15:13

jsdario

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Is there a way to check if they are valid? – Mladen Janjetovic Mar 10 '17 at 15:17
1

Maybe something like this http://stackoverflow.com/questions/25482199/verify-a-certificate-chain-using-openssl-verify – jsdario Mar 10 '17 at 16:25

score 0 · Answer 2 · answered Dec 04 '15 at 15:01

Setting the allowed protocols in the options solved it for me:

NPNProtocols: ['http/2.0', 'spdy', 'http/1.1', 'http/1.0']

So server instantiation would look like following in your code example:

var sslServer = https.createServer({
    key: fs.readFileSync('ryans-ley.pem'),
    cert: fs.readFileSync('ryans-cert.pem'),
    NPNProtocols: ['http/2.0', 'spdy', 'http/1.1', 'http/1.0']
}, app)

Error on launching https server express

2 Answers2