From: Bob Showalter <bob_showalter@...>
Date: 2005-11-23T06:28:02+09:00
Subject: Re: debugging a cgi

mark wrote:
> Thanks for the suggestions, however running from the shell and viewing
> logs are not usually available in budget hosting packages.

I'm not an expert on this, but why not wrap your entire script in 
something like this:

   begin

      ...your script here...

   rescue Exception
      print "Content-Type: text/plain\r\n\r\n"
      puts $!.inspect, $!.backtrace
   end

That should put out a valid response for any uncaught exception and show 
the error at the client.