Sockets.io is not starting from iPhone

Hi All,

There is an unexpected problem with my nodejs code.
I have configured nodejs on my server and is working fine from browser, android device. But when I try to check it from iPhone then there seems no session to be started for iphone.

When I tried to debug the code from console I found that
When I login from iPhone function in app.js: "io.sockets.on('connection', function(socket);" doesn't execute.
but it completely works fine when I logged in from my system browser and android phone browser.

Please let me know if any other details are required.

Thanks and Regards,
Gaurav