On Sun, Mar 14, 2010 at 11:22 AM, Arthur Goldberg <artg@(protected):
> Perhaps you're referring to Apache's ErrorDocument (also described in Custom
> Error Response).

Yes, that's what I meant.

> While that can run local Perl (in a new process of course)
> as in the example
>        ErrorDocument 500 /cgi-bin/crash-recover.pl
> it isn't clear to me how to access $r (which I assume means the Request).

You can send it to any URL you like, including one handled by mod_perl.

- Perrin