Hi Hans,
While investigating the effect of subclassing ACCEPTOR-STATUS-MESSAGE, I came across this behaviour:
CL-USER> (load "srv.lisp")
The value 404 is not of type SEQUENCE. [Condition of type TYPE-ERROR]
--8<---------------cut here---------------start------------->8--- ;;; srv.lisp
(in-package "CL-USER")
(asdf:load-system :hunchentoot) (asdf:load-system :drakma)
(setq tbnl:*catch-errors-p* nil)
(tbnl:start (make-instance 'tbnl:acceptor :document-root nil :error-template-directory nil :address "127.0.0.1" :port 50000))
(write (drakma:http-request "http://127.0.0.1:50000")) --8<---------------cut here---------------end--------------->8---
I've set TBNL:*CATCH-ERRORS-P* to NIL so that you drop into the debugger. This shows that the call (START-OUTPUT 404 ...) results in a (LENGTH 404) call, which is what fails, but it's not obvious (at least not to me) where this LENGTH call is coming from.
Sebastian