From 8c968e92f4dcc22e1da6b62fd86b92892f15a234 Mon Sep 17 00:00:00 2001
From: russ <5236354+russellbrenner@users.noreply.github.com>
Date: Thu, 9 Apr 2026 23:12:30 +1000
Subject: [PATCH] fix: correct Computer Modern Sans italic font file mappings
 (#2881)

The 400italic and 700italic variants for Computer Modern Sans pointed
to incorrect filenames. `cmunsl.woff` does not exist in the upstream
bitmaks/cm-web-fonts repository (returns 404 from jsDelivr CDN).

This causes PDF export to fail with "Waiting failed: 5000ms exceeded"
because Puppeteer's waitForFonts stalls on the 404, preventing the
page from signalling data-wf-loaded="true" within the timeout.

Correct mapping verified against the upstream @font-face declarations
in bitmaks/cm-web-fonts font/Sans/cmun-sans.css:

  - 400 normal:  cmunss.woff (unchanged)
  - 400 italic:  cmunsi.woff (was cmunsl.woff, which does not exist)
  - 700 normal:  cmunsx.woff (unchanged)
  - 700 italic:  cmunso.woff (was cmunsi.woff, which is the 400 italic)

Co-authored-by: Claude <noreply@anthropic.com>
---
 scripts/fonts/generate.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/fonts/generate.ts b/scripts/fonts/generate.ts
index a10664c10..72fe7112e 100644
--- a/scripts/fonts/generate.ts
+++ b/scripts/fonts/generate.ts
@@ -99,9 +99,9 @@ function getComputerModernWebFonts(): WebFont[] {
       preview: `${CDN}/Sans/cmunss.woff`,
       files: {
         "400": `${CDN}/Sans/cmunss.woff`,
-        "400italic": `${CDN}/Sans/cmunsl.woff`,
+        "400italic": `${CDN}/Sans/cmunsi.woff`,
         "700": `${CDN}/Sans/cmunsx.woff`,
-        "700italic": `${CDN}/Sans/cmunsi.woff`,
+        "700italic": `${CDN}/Sans/cmunso.woff`,
       },
     },
     {