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Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	class-variance-authority@​0.7.1
	@​types/​mdx@​2.0.13
	@​ai-sdk/​react@​2.0.92
	dexie-react-hooks@​4.2.0
	fumadocs-mdx@​13.0.7
	@​types/​react-dom@​19.2.2
	fumadocs-core@​16.0.10
	fumadocs-ui@​16.0.10
	shiki@​3.15.0
	@​types/​react@​19.2.3
	clsx@​2.1.1
	nanoid@​3.3.7 ⏵ 5.1.6		+8	-1
	feed@​5.1.0
	radix-ui@​1.4.3
	input-otp@​1.4.2
	vaul@​1.1.2
	@​types/​node@​24.10.0
	next@​16.0.1
	postcss@​8.5.6
	sonner@​2.0.7
	@​vercel/​analytics@​1.5.0
	embla-carousel-react@​8.6.0
	cmdk@​1.1.1
	next-themes@​0.4.6
	react-resizable-panels@​3.0.6
	tailwindcss@​4.1.17
	use-stick-to-bottom@​1.1.1
	tailwind-merge@​3.4.0
	@​vercel/​speed-insights@​1.2.0
	@​hookform/​resolvers@​5.2.2
	dexie@​4.2.1
	typescript@​5.9.3
	tw-animate-css@​1.4.0
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[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
swr	Error			Nov 18, 2025 8:15pm

[vercel]

The locale code 'ja-FR' is invalid and should be 'ja' to match the actual Japanese content files and be a valid locale code.

View Details

📝 Patch Details

diff --git a/docs/app/[lang]/layout.tsx b/docs/app/[lang]/layout.tsx
index 54538b3..225aeef 100644
--- a/docs/app/[lang]/layout.tsx
+++ b/docs/app/[lang]/layout.tsx
@@ -51,7 +51,7 @@ const { provider } = defineI18nUI(i18n, {
     'fr-FR': {
       displayName: 'French'
     },
-    'ja-FR': {
+    'ja': {
       displayName: 'Japanese'
     },
     ko: {
diff --git a/docs/app/api/search/route.ts b/docs/app/api/search/route.ts
index 8ea494c..1b655b5 100644
--- a/docs/app/api/search/route.ts
+++ b/docs/app/api/search/route.ts
@@ -7,7 +7,7 @@ export const { GET } = createFromSource(source, {
   localeMap: {
     'en-US': { language: 'english' },
     'fr-FR': { language: 'french' },
-    'ja-FR': { language: 'japanese' },
+    'ja': { language: 'japanese' },
     'pt-BR': { language: 'portuguese' },
     'zh-CN': { language: 'chinese' },
     ko: { language: 'korean' },
diff --git a/docs/lib/geistdocs/i18n.ts b/docs/lib/geistdocs/i18n.ts
index ab7bc54..fc2ee02 100644
--- a/docs/lib/geistdocs/i18n.ts
+++ b/docs/lib/geistdocs/i18n.ts
@@ -3,5 +3,5 @@ import { defineI18n } from 'fumadocs-core/i18n'
 export const i18n = defineI18n({
   defaultLanguage: 'en-US',
   hideLocale: 'default-locale',
-  languages: ['en-US', 'fr-FR', 'ja-FR', 'ko', 'pt-BR', 'ru', 'zh-CN']
+  languages: ['en-US', 'fr-FR', 'ja', 'ko', 'pt-BR', 'ru', 'zh-CN']
 })

Analysis

Invalid locale code 'ja-FR' prevents search and routing from finding Japanese content

What fails: Search route and i18n system fail to properly map content because the locale configuration uses 'ja-FR' but actual content files use .ja.mdx suffix, causing routing mismatches for Japanese language content.

How to reproduce:

1. Navigate to a Japanese page via /ja/docs/...
2. Attempt to search for content on a Japanese page
3. Observe that search and content routing don't properly recognize the Japanese locale

Result: Japanese content files (e.g., docs/content/blog/swr-v1.ja.mdx) are named with .ja suffix, but the locale configuration in three files uses ja-FR:

• docs/app/api/search/route.ts line 10: 'ja-FR': { language: 'japanese' }
• docs/lib/geistdocs/i18n.ts line 6: languages: [..., 'ja-FR', ...]
• docs/app/[lang]/layout.tsx line 54: 'ja-FR': { displayName: 'Japanese' }

Expected: According to Fumadocs page conventions, locale codes in configuration must match file suffixes exactly. The dot parser appends .{locale} to filenames - files are get-started.cn.mdx, not get-started.cn-XX.mdx.

Additionally, BCP 47 language tag standard specifies that ISO 639-1 code for Japanese is ja, and recommends "keep your language tag as short as possible" without regional suffixes unless necessary for disambiguation.

Fix: Changed all three occurrences of 'ja-FR' to 'ja' to match actual content file naming (*.ja.mdx) and conform to language tag standards.