PsyCrit:Issues

• 2020-07-24 (Woozle) content of PDFs will not display, despite the fact of having PDFHandler installed (see Special:Version). This also doesn't seem to be working on Issuepedia anymore, though it used to. Also, each File page shows an unnecessary warning about PDF exploits, which links to Help:Security/PDF files.
  • Example: File:StaddonZhang1989.pdf
  • I have tried setting $wgTrustedMediaFormats, with no apparent effect.
  • I posted a question about this on mediawiki.org.