Lazy-load Japanese fonts only for Japanese users#932
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Move Japanese Noto Sans JP fonts (~13MB) out of Next.js bundling to avoid loading them for English users. Fonts are now loaded via CSS @font-face only when languageCode === "ja". - Move NotoSansJP fonts from src/libs/theme/fonts/ to public/fonts/ - Add public/fonts/japanese-fonts.css with @font-face declarations - Remove JapaneseFont from next/font/local in fonts.tsx - Conditionally load CSS stylesheet in page-layout for Japanese - Add fonts/ to middleware matcher exclusions Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Preview URL https://next-jwt-vjaamcq47-okta.vercel.app |
Keep both llms.txt (from master) and fonts/ (from this branch) in exclusions. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Preview URL https://next-jwt-m24uhd1fy-okta.vercel.app |
Sambego
approved these changes
Apr 28, 2026
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Move Japanese Noto Sans JP fonts (~13MB) out of Next.js bundling to avoid loading them for English users. Fonts are now loaded via CSS @font-face only when languageCode === "ja".