无法在HttpRequest中访问cookie

I'm trying to do a “get” of a page, and pass in a list of ids that is stored in my cookie. My assumption was that it would be possible to get the cookie with the list from my request. However, I don’t get the cookie on the server side as I would expect. I only get a “user” cookie, but that doesn’t contain my info. I'm trying to do a “get” of a page, and pass in