1933004 - browser.display.use_document_fonts vs generic-family inconsistencies

Status: NEW

(Core :: Layout: Text and Fonts, enhancement)

Description

[Thorin [:thorin]]

In testing I have found that browser.display.use_document_fonts = 0 behaves inconsistently with <generic-family>.

It seems as if monospace, sans-serif and serif are never blocked (I would need to flip to a language that isn't default serif to confirm), but others such as cursive, fangsong and system-ui are

I found an old issue from 24 years ago :) ... Bug 79074 with other linked issues, but whatever the logic from then is no doubt mostly obsolete now. Since then we've had new generic families, and maybe this needs a reassessment and tidy up? If not, then feel free to close as invalid

My intuition says we should block "fonts", not generic families

Comment 1

[Thorin [:thorin]]

Attachment: test.jpg

https://arkenfox.github.io/TZP/tests/fontdebug.html

                    1                  0
MS Shell Dlg \32  tahoma             times new roman (expected)
         cursive  comic sans ms      times new roman
        fangsong  fangsong           times new roman
       monospace  consolas           consolas
      sans-serif  arial              arial
           serif  times new roman    times new roman (serif is my default font)
       system-ui  segoe ui           times new roman