Alright I had some issues getting this to work using a self signed cert for testing so I am going to copy my setup that worked for me. If your not using a self signed cert you probably wont have these issues, hopefully!
To start off depending on your browser Firefox or Chrome you may have different issues and I'll explain in a minute.
First the Setup:
Client
// May need to load the client script from a Absolute Path
<script src="https://www.YOURDOMAIN.com/node/node_modules/socket.io-client/dist/socket.io.js"></script>
<script>
var options = {
rememberUpgrade:true,
transports: ['websocket'],
secure:true,
rejectUnauthorized: false
}
var socket = io.connect('https://www.YOURDOMAIN.com:PORT', options);
// Rest of your code here
</script>
Server
var fs = require('fs');
var options = {
key: fs.readFileSync('/path/to/your/file.pem'),
cert: fs.readFileSync('/path/to/your/file.crt'),
};
var origins = 'https://www.YOURDOMAIN.com:*';
var app = require('https').createServer(options,function(req,res){
// Set CORS headers
res.setHeader('Access-Control-Allow-Origin', 'https://www.YOURDOMAIN.com:*');
res.setHeader('Access-Control-Request-Method', '*');
res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET');
res.setHeader('Access-Control-Allow-Headers', '*');
if ( req.method === 'OPTIONS' || req.method === 'GET' ) {
res.writeHead(200);
res.end();
return;
}
});
var io = require('socket.io')(app);
app.listen(PORT);
For development the options used on the client side are ok in production you would want the option:
rejectUnauthorized: false
You would more than likely want set to "true"
Next thing is if its a self signed cert you will need to vist your server in a separate page/tab and accept the cert or import it into your browser.
For Firefox I kept getting the error
MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT
The solution for me was to add the following options and accepting the cert in a different page/tab.
{
rejectUnauthorized: false
}
In Chrome I had to open another page and accept the cert but after that everything worked fine with out having to add any options.
Hope this helps.
References: