trying to understand here what push could be made so you bypass the DNS privileges..and got this...a controller in ajax "...Cjax uses URL query string to pass parameters into the controller by using function parameters. You can pass alphabetic letters as parameter order to your methods inside the controllers. There is more than one way to pass parameters, depending on the way you are using the URL.."

https://github.com/bcit-ci/CodeIgniter/wiki/Ajax-Framework-For-CodeIgniter