Hi Abhi,
In IE, Tools->F12 Developer Tools->Network Tab (Start capturing) {this option might not be there in ole IE}
In Chrome, Tools ->Developer Tools ->Network Tab
You will see all the request going out.
Alternatively, you can also launch Personas in debug mode by adding log=debug in your launch URL,
http....../mainapp/index.html?log=debug
In the log files generated, you will see the URL personas tries to send.
Regards,
Sushant