> The code in webserver-lib seems alright though : > > (define (output-response-body/chunked conn bresp) > (define-values (from-servlet to-chunker) (make-pipe)) > (define to-client (connection-o-port conn)) > (define to-chunker-t > (thread (λ () > ((response-output bresp) to-chunker) > (close-output-port to-chunker)))) > (define buffer (make-bytes 1024)) > (define total-size > (let loop ([total-size 0]) > (define bytes-read-or-eof > (read-bytes-avail! buffer from-servlet)) > (if (eof-object? bytes-read-or-eof) > total-size > (begin > (fprintf to-client "~a\r\n" (number->string bytes-read-or-eof 16)) > (write-bytes buffer to-client 0 bytes-read-or-eof) > (fprintf to-client "\r\n") > (loop (+ total-size bytes-read-or-eof)))))) > (thread-wait to-chunker-t) > (fprintf to-client "0\r\n") > (print-headers > to-client > (list (header #"Content-Length" > (string->bytes/utf-8 (number->string total-size))))) > (flush-output to-client))
Apologies in advance if I'm confused, but I'm not sure that the `print-headers` near the end is correct. My understanding: 1. Trailing headers should only be sent if there was a TE request header (I don't see that checked for.) 2. Trailing headers should be listed in a Trailer response header (I don't see one sent here.) 3. A few headers "MUST NOT" be trailing headers: Trailer, Transfer-Encoding, and Content-Length (but the last _is_ sent here). Source: http://tools.ietf.org/html/rfc2616#section-14.40 Assuming that's correct the `(print-headers ... #"Content-Length" ...)` should simply be deleted, I think? Maybe the trailing Content-Length header is what Varnish is being strict about. I haven't studied web-server code, so again, apologies if I'm misunderstanding! ____________________ Racket Users list: http://lists.racket-lang.org/users
