https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42374 --- Comment #8 from David Cook <dcook@prosentient.com.au> --- While reporting https://github.com/briandfoy/business-isbn-data/issues/236 it got me thinking... so I started looking through CGI::Compile, CGI::Emulate::PSGI, and Plack::App::WrapCGI and nothing stood out to me. That's when I started thinking about Koha::Middleware::SetEnv. But it was clean. You know what it is? system() While the environmental variables are shared between install.pl and updatedatabase.pl, they're still different processes, and Perl's "undef" isn't meaningful in terms of OS environmental variables, so it gets stringified as "". *brainsplosion* -- You are receiving this mail because: You are watching all bug changes. You are the assignee for the bug.