Cookies NULL On Some ASP.NET Pages (even though it IS there!)
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by DaveDev
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Published on 2010-01-20T14:51:39Z
Indexed on
2010/03/13
18:35 UTC
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Hi folks
I'm working on an ASP.NET application and I'm having difficulty in understanding why a cookie appears to be null.
On one page (results.aspx) I create a cookie, adding entries every time the user clicks a checkbox. When the user clicks a button, they're taken to another page (graph.aspx) where the contents of that cookie is read.
The problem is that the cookie doesn't seem to exist on graph.aspx. The following code returns null:
Request.Cookies["MyCookie"];
The weird thing is this is only an issue on our staging server. This app is deployed to a production server and it's fine. It also works perfectly locally.
I've put debug code on both pages:
StringBuilder sb = new StringBuilder();
foreach (string cookie in Request.Cookies.AllKeys)
{
sb.Append(cookie.ToString() + "<br />");
}
this.divDebugOutput.InnerHtml = sb.ToString();
On results.aspx (where there are no problems), I can see the cookies are:
MyCookie __utma __utmb __utmz _csoot _csuid ASP.NET_SessionId __utmc
On graph.aspx, you can see there is no 'MyCookie'
__utma __utmb __utmz _csoot _csuid ASP.NET_SessionId __utmc
With that said, if I take a look with my FireCookie, I can see that the same cookie does in fact exist on BOTH pages! WTF?!?!?!?! (ok, rant over :-) )
Has anyone seen something like this before? Why would ASP.NET claim that a cookie is null on one page, and not null on another?
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