c# - WebClient SSL Single Sign on Proxy -

i'm building ajax proxy page pull information ssl single sign on site. unfortunately feel i'm getting stuck. i've tried using webclient , httpwebrequest can't seem past initial page.

i'm catch link click action , passing url of link proxy page.

$("#frame").load("/proxyajax?url=" + serializeddata); 

and executing following code

string redirecturl = server.urldecode(request.querystring["url"]); uri myuri = new uri(redirecturl); webclient wc = new webclient();  wc.headers.add("cookie", request.headers["cookie"]);  vd.string = wc.downloadstring(redirecturl); 

have page i'm calling executing redirect , stuck somewhere between. ideas of how resolve this?