Re: Odd backtrace in condition-case

[Stefan Monnier]

> I usually run with `debug-on-error' set, but lately I've started getting
> these backtraces:
>
> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
>   capitalize(nil)
>   timezone-make-arpa-date(2000 0 0 "01:00:00" (3600 "CET"))
>   timezone-make-date-arpa-standard("Session")
>   date-to-time("Session")
>   url-cookie-expired-p([url-cookie "NRK-Experiment-Bucket" "0" "Session" "/" 
> "www.nrk.no" nil])

FWIW, I think it was useful for Emacs to show this backtrace (hence
validating the use of condition-case-unless-debug there ;-) because
it makes no sense for

    (date-to-time "Session")

to signal the error `(wrong-type-argument char-or-string-p nil)`

IOW, the above backtrace indicates a bug somewhere within date-to-time,
which should signal *another* error.


        Stefan