I'm not sure, but I believe this depends on how the page is designed. If they are doing something on the server side, dynamically generating the page with php or something, they will end up with your proxy address. If they are running javascript on the client side, they can show YOU your real IP address, but they won't really have it. Kinda like those stupid Iframes that would show you your own C:\ drive "we can see your entire hard drive!!! oh noes!!!111eleven".
Slashdot Mirror
I'm not sure, but I believe this depends on how the page is designed. If they are doing something on the server side, dynamically generating the page with php or something, they will end up with your proxy address. If they are running javascript on the client side, they can show YOU your real IP address, but they won't really have it. Kinda like those stupid Iframes that would show you your own C:\ drive "we can see your entire hard drive!!! oh noes!!!111eleven".