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Asked: 2026-05-27T20:46:22+00:00

I have two questions. Question #1: What is the difference between HttpWebResponse.Cookies and WebResponse.Headers[Set-Cookie]?

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I have two questions.

Question #1: What is the difference between HttpWebResponse.Cookies and WebResponse.Headers[“Set-Cookie”]? Is “WebResponse.Headers[“Set-Cookies”]” not valid http cookie?

Question #2: How to get the values of duplicated headers that have same name from HttpWebResponse?

Here is the raw response that I copied from Fiddle. As you can see, there is two headers with same name “Set-Cookie”. I always get the first one in HttpWebResponse. Is ” __utms” cookie from Google analytics? 

HTTP/1.1 200 OK
Date: Tue, 27 Dec 2011 09:47:53 GMT
Chunk: 10210620
Set-Cookie: ASP.NET_SessionId=34ft0d45uboqv245bev2nwrj; path=/; HttpOnly
Set-Cookie: __utms=A51743627D9238C3997BABD76D7D75; domain=ibc88.com; expires=Wed, 28-Dec-2011 09:47:53 GMT; path=/
Content-Type: text/html; charset=utf-8
Cache-Control: private, no-store
Content-Length: 2543
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1 Answer

  1. Editorial Team

    Do you notice the HttpOnly flag in the ASP.NET_SessionId cookie? This flag basically indicates that this cookie cannot be read by clients. You are sending a client request using a WebRequest or a WebClient or whatever but you will never be able to read this cookie value. Only the server can read it. The client will store and send it on subsequent requests but you can never read its value.

    Jeff also blogged about HttpOnly.

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