I've just committed the culmination of this thread.<div> </div><div>I've removed the coercive contracts and replaced them with a global imperative any->response hook that defaults to "off" but can easily be turned "on" to support X-exprs or the old behavior of the Web Server.</div> <div> </div><div>Jay <div class="gmail_quote">On Fri, Nov 26, 2010 at 5:55 PM, Jay McCarthy <<a href="mailto:jay.mccarthy@gmail.com">jay.mccarthy@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> I would like to remove the implicit preference the Web Server gives to Xexprs and the old esoteric bytes response format. This is backwards incompatible change, but I think it will make the server better in the long run as it will promote other HTML encodings, like the xml and html modules, Eli's new system, SXML, etc. I am interested in your opinion. -- Details -- Everywhere that the server expects a "response" uses the response/c contract <a href="http://pre.racket-lang.org/docs/html/web-server/http.html#(def._((lib._web-server/http/response-structs..rkt)._response/c))" target="_blank">http://pre.racket-lang.org/docs/html/web-server/http.html#(def._((lib._web-server/http/response-structs..rkt)._response/c))</a> This allows the native HTTP response data structures, Xexprs, and lists that start with bytes (the MIME type) where everything after is a byte string or normal string. [I have no idea where that last thing came from, but it was in the legacy server and I've kept it compatible.] In addition to backwards incompatibility, this could make Web programming a bit more verbose, because you'd have to explicitly call "make-xexpr-response" to construct the response from the Xexpr. I could ease that a little bit by changing its name to "xexpr" or something similar. Any ideas on the best way to deal with this? Jay -- Jay McCarthy <<a href="mailto:jay@cs.byu.edu">jay@cs.byu.edu</a>> Assistant Professor / Brigham Young University <a href="http://faculty.cs.byu.edu/~jay" target="_blank">http://faculty.cs.byu.edu/~jay</a> "The glory of God is Intelligence" - D&C 93 </blockquote></div> -- Jay McCarthy <<a href="mailto:jay@cs.byu.edu" target="_blank">jay@cs.byu.edu</a>> Assistant Professor / Brigham Young University <a href="http://faculty.cs.byu.edu/~jay" target="_blank">http://faculty.cs.byu.edu/~jay</a> "The glory of God is Intelligence" - D&C 93 </div>