I have a web site under a domain, where the main domain is using Google Analytics which sets a cookie named __utmva which is value is part binary.
As far as I can tell passing this cookie to IIS returns Bad Request (400) - "The request is badly formed.".
- What the hack is that cookie resposibble for?
- Is is allowed to pass binary values in cookies? (The request is also binary and not encoded, verified with Fiddler)
- If the answer for #2 is Yes, why is IIS failing and how do I fixed that?.