Insert Cookie for a different domain

Are you seeing the Set-Cookie being sent back as a response on the wire? I suspect that your user agent might be rejecting the cookies because the host name of the Set-Cookie is different that the current host name. In another words, I don't think you are allowed to do a Set-Cookie abc.domain.com from 123.domain.com.

 

 

Its hard to tell what you are trying to do exactly, but would it be possible to put information about the domains that you visited inside the cookies instead of playing games with the domain values? If so, you should set the domain to ".domain.com.". Hope that helps.