Safari over windows client use xhr-polling instead of websocket - performance are severely harm #1147

yanivge · 2013-01-29T16:12:25Z

i used a simple client server socket.io communication over various environments using secured connection.
See in the table below, Safari behave differently on http and https
this cause a sever performance issue

server.js:

var fs = require('fs')
, privateKey = fs.readFileSync('/etc/httpd/certs/server.key').toString()
, certificate = fs.readFileSync('/etc/httpd/certs/server.crt').toString()
, options = {key: privateKey, cert: certificate}
//    ,app = require('https').createServer(options, handler)
, app = require('http').createServer(handler)   
, io = require('socket.io').listen(app);

app.listen(9000);

function handler(req, res) {
    fs.readFile(__dirname + '/client.html',
    function (err, data) {
        if (err) {
            res.writeHead(500);
            return res.end('Error loading client.html');
        }

    res.writeHead(200);
    res.end(data);
    });
}

io.configure(function () {
    io.set('log level', 3);
    io.set('transports', [
        'websocket',
        'flashsocket',
        'xhr-polling'/
    ]);
});

io.sockets.on('connection', function (socket) {
    socket.emit('news', { hello: 'Connected', timestamp: new Date() });
    socket.on('my other event', function (data) {
        console.log(data);

        setTimeout(function () {
            socket.emit('news', { hello: 'world', timestamp: new Date() });
        }, 1000);
    });
});

client.html:

<html>
    <head>
        <div>Simple example how Safari on windows use different transportation for http and https connections</div>
        <script src="/socket.io/socket.io.js"></script>
        <script>
            var baseUrl = window.location.protocol + "//" + window.location.host,
//          socket = io.connect(baseUrl,{secure:true});
            socket = io.connect(baseUrl);
            socket.on('news', function (data) {
                alert("got smth");
            setTimeout(function () {
                socket.emit('my other event', { my: 'data', timestamp: new Date() });
            }, 1000);
        });
        </script>
    </head>
    <body></body>
</html>

Results table:

Browser         (http)      (http)         (http)          (SSL)         (SSL)            (SSL) 
                Windows     Linux           Mac             Windows      Linux             Mac
FF(18)          websocket   websocket                       websocket    websocket  
IE(8)           flashsocket                                 flashsocket     
Chrom(24)       websocket   websocket                       websocket    websocket  
Safari          websocket                websocket         xhr-polling                  websocket
Opera(11)       flashsocket                                 flashsocket

The text was updated successfully, but these errors were encountered:

citosid · 2014-03-06T15:15:13Z

Did you found any solution?

yanivge · 2014-03-07T07:17:50Z

No.

This issue was closed.

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Safari over windows client use xhr-polling instead of websocket - performance are severely harm #1147

Safari over windows client use xhr-polling instead of websocket - performance are severely harm #1147

yanivge commented Jan 29, 2013

citosid commented Mar 6, 2014

yanivge commented Mar 7, 2014

Safari over windows client use xhr-polling instead of websocket - performance are severely harm #1147

Safari over windows client use xhr-polling instead of websocket - performance are severely harm #1147

Comments

yanivge commented Jan 29, 2013

server.js:

client.html:

Results table:

citosid commented Mar 6, 2014

yanivge commented Mar 7, 2014