view a pdf in safari
according to this page
https://support.apple.com/guide/safari/see-a-pdf-ibrw1090/mac
"Safari has a built-in PDF reader that automatically displays PDF documents right in the browser window."
yet when I drag a PDF from my desktop into a blank Safari tab, it is not displayed and instead the window says "Safari can't open the page"
MacBook Pro (2020 and later)