In [Function::Parameters](https://metacpan.org/pod/Function::Parameters#DESCRIPTION) I link to `L<perlapi/PL_keyword_plugin>`, which metacpan converts to https://metacpan.org/pod/perlapi#PL_keyword_plugin, which is 404. According to https://github.com/CPAN-API/metacpan-web/issues/686 metacpan simply doesn't support perlapi, but then it shouldn't try to generate links to it. Maybe special case it and link to http://perldoc.perl.org/perlapi.html#PL_keyword_plugin instead?