Why is ASP being blocked on my server when attempting to read cookies?
Symptom:
ASP is blocked when attempting to read cookies on an aliased domain. For example:
Main Domain: http://www.coolexample.com
Alias Domain: http://www.coolexample.org
Alias Folder: /coolexample_org
This works: http://coolexample.com/coolexample_org/cookies.asp
This does not work: http://coolexample.org/cookies.asp
Cause:
When an aliased domain is inside a sub-application within the application root, the cookie is created with a default path of the sub-folder. For example:
Name: CE
Content: Cookie+Value
Host: coolexample.com
Path: /coolexample_org
When a cookie call is made, by default it does not include a path. As a result, cookies work on the primary domain, but not the aliased one.
Resolution:
When you create a cookie, you need to add a line of code to reflect the correct path for that subdomain.
Response.Cookies("CE").Path=""
Where CE is the name of your cookie. This will create the following cookie:
Name: CE
Content: Cookie+Value
Host: coolexample.com
Path: /
For more information, see Maintaining Session State with Cookies on the MSDN Web site.