Index: lang/perl/MENTA/trunk/bin/cgi-server.pl
===================================================================
--- lang/perl/MENTA/trunk/bin/cgi-server.pl (revision 24837)
+++ lang/perl/MENTA/trunk/bin/cgi-server.pl (revision 24845)
@@ -81,5 +81,5 @@
             waitpid($pid, POSIX::WNOHANG);
         } elsif ($pid == 0) {
-            local $ENV{HTTP_COOKIE} = $ENV{COOKIE};
+            local $ENV{HTTP_COOKIE} = $ENV{COOKIE} || '';
             stopwatch(sub {
                 my $out = bind_stdout(sub {