> And does it mess Cuirass if the connection is lost e.g. down the > network?
Not sure yet, I also found this message: --8<---------------cut here---------------start------------->8--- Uncaught exception in fiber ##f: In ice-9/boot-9.scm: 1736:10 5 (with-exception-handler _ _ #:unwind? _ # _) In web/server/fiberized.scm: 160:26 4 (_) In ice-9/suspendable-ports.scm: 83:4 3 (write-bytes #<closed: file 7ff11c2dec40> #vu8(60 33 ?) ?) In unknown file: 2 (port-write #<closed: file 7ff11c2dec40> #vu8(60 33 # ?) ?) In ice-9/boot-9.scm: 1669:16 1 (raise-exception _ #:continuable? _) 1669:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1669:16: In procedure raise-exception: In procedure fport_write: Broken pipe --8<---------------cut here---------------end--------------->8--- that suggests that we try to write something to a closed file. To be investigated :) Mathieu