Going back to Listing 14, after we create the XML document as a string, we set the response header for the content type and send the XML string back to requester.

Rather, the first thing that isn't part of the body of a message must match the beginnings of the next possible object; a bit of reading back and forth reveals that it must be part of a header.

It is interesting to note that t can be extracted from the HTTP Date header that the server sends back to the client, together with the first time that the cookies are set.