The IP address of the visitor is forwarded in X-Forward-For, which is a standard header and CDN's can leverage that. Having said that, note that this can actual

The IP address of the visitor is forwarded in X-Forward-For, which is a standard header and CDN's can leverage that. Having said that, note that this can actually work against you.. The whole idea is that all of the requests are multiplexed over SPDY between the device and the proxy. So you actually want the closest resource to the proxy, not to the device (and the proxy as close to the device as possible, of course.. :))