perl-Plack-Middleware-LogErrors

Map psgi.errors to psgix.logger or other logger

'psgi.errors' defaults to 'STDERR' in most backends, which results in content going somewhere unhelpful like the server console. This middleware simply remaps the 'psgi.errors' stream to the 'psgix.logger' stream, or an explicit logger that you provide. This is especially handy when used in combination with other middlewares such as Plack::Middleware::LogWarn (which diverts Perl warnings to 'psgi.errors'); Plack::Middleware::HTTPExceptions (which diverts uncaught exceptions to 'psgi.errors'); and Plack::Middleware::AccessLog, which defaults to 'psgi.errors' when not passed a logger -- which is also automatically applied via plackup (so if you provided no '--access-log' option indicating a filename, 'psgi.errors' is used).