Methods and systems are provided for proxying data between an application server and a client device. One exemplary application system includes an application server to generate a virtual application and a proxy server coupled to the application server over a network to provide the virtual application to a client device. The proxy server receives input data from the client device and provides the input data to the application server, wherein the application server encodes the input data for an action in response to authenticating the proxy server and provides the data encoded for the action to the proxy server. The proxy server performs the action on the data and provides the result to the client device.