The end of the page shows a dash on the first line after the Content-type header. The Content-type HTTP header is usually passed from server to client. The only time that the client passes that header to the server is in the event of a POST operation. This part originally was written for chapter 19, after the discussion of maintaining state information via query strings. It was duplicated here in Chapter 17, since this discussion really applies to CGI programming in general, not just with Perl.
Some publishers have a very annoying habit of referring only to their own books.
This is unfortunate, because it greatly limits what readers can learn on the referenced subject. This is not what I wrote. It was decided that in order to be more politically correct, the masculine pronoun couldn't remain there by itself. Nevermind the fact that in English, it is grammatically correct to use the masculine form of a word when the gender is undefined. Code snippets aren't lined up properly.