|\u003Cimg width=\"324\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/cd6f6927-33b3-4b85-a984-64c6cb1f53e5\" />|\n\n#### Proposed Feature: `localeDetector` Option\n\n##### Current Behavior Example\n\nTo illustrate the current behavior, consider the following scenario:\n\n* Accessing `/en/about` and `/ja/about` under the `no_prefix` strategy will not trigger locale detection based on the pathname.\n* As a result, both paths will use the language setting of the build machine during SSG, resulting in both paths potentially being generated in the same language.\n\nScreenshots and repository links demonstrating the current behavior will be provided to further clarify the issue.\n\nTo address this issue, I propose adding a new `localeDetector` option to the module configuration. This option allows specifying the methods for locale detection as follows:\n\n```typescript\ntype LocaleDetector = (\"pathname\" | \"domain\" | \"cookie\" | \"browser\")[];\n\nconst localeDetector: LocaleDetector = [\"pathname\", \"domain\", \"cookie\", \"browser\"];\n```\n\nIf `pathname` is specified, the locale will be automatically detected based on the URL pathname.\n\nThe default value of `localeDetector` will vary depending on the `strategy` value to maintain backward compatibility. For instance, when `no_prefix` is selected, the default value would be:\n\n```javascript\nlocaleDetector: [\"domain\", \"cookie\", \"browser\"]\n```\n\n##### Example Configuration for My Use Case:\n\n```javascript\nstrategy: \"no_prefix\",\nlocaleDetector: [\"pathname\", \"cookie\", \"browser\"]\n```\n\nThis configuration would resolve the issue by enabling locale detection based on pathname while maintaining backward compatibility with existing behavior.\n\nThank you for considering this feature request. I would be happy to provide further clarifications or contribute to the implementation if needed.\n\n\n### Additional information\n\n- [x] Would you be willing to help implement this feature?\n- [ ] Could this feature be implemented as a module?\n\n### Final checks\n\n- [x] Read the [contribution guide](https://nuxt.com/docs/community/contribution) (The contribution guideline of nuxt-modules/i18n is compliant with Nuxt too).\n- [x] Check existing [discussions](https://github.com/nuxt-modules/i18n/discussions) and [issues](https://github.com/nuxt/nuxt/issues).",[3032],{"name":3019,"color":3020},3609,"Add `localeDetector` option to customize locale detection during Vue component rendering","2025-05-16T18:51:35Z","https://github.com/nuxt-modules/i18n/issues/3609",0.6499812,{"description":3039,"labels":3040,"number":3042,"owner":3022,"repository":3023,"state":3024,"title":3043,"updated_at":3044,"url":3045,"score":3046},"### Environment\n\n- Operating System: `Darwin`\n- Node Version: `v21.7.1`\n- Nuxt Version: `3.16.2`\n- CLI Version: `3.25.0`\n- Nitro Version: `2.11.9`\n- Package Manager: `npm@10.9.0`\n- Builder: `-`\n- User Config: `codegen`, `compatibilityDate`, `css`, `device`, `devtools`, `i18n`, `image`, `modules`, `runtimeConfig`, `scripts`, `srcDir`, `svgo`, `vite`, `watch`\n- Runtime Modules: `@bootstrap-vue-next/nuxt@0.29.3`, `@nuxt/eslint@1.3.0`, `@nuxt/fonts@0.11.2`, `@nuxt/image@1.10.0`, `@nuxt/scripts@0.11.6`, `@nuxtjs/device@3.2.4`, `@nuxtjs/i18n@9.5.3`, `@nuxtjs/stylelint-module@5.2.1`, `nuxt-svgo@4.0.19`, `nuxt-swiper@2.0.0`\n- Build Modules: `-`\n\n\n### Reproduction\n\nHere is the reproduction:\n\nhttps://stackblitz.com/edit/bobbiegoede-nuxt-i18n-starter-rskcxctd\n\n### Describe the bug\n\nWhen you translate your pages with defineI18nRoute (or maybe into `pages` key into i18n config) is getting rid when strategy in no prefixed (bot _no_prefix_ and _prefix_except_default_)\n\n### Additional context\n\n_No response_\n\n### Logs\n\n```shell\n\n```",[3041],{"name":3019,"color":3020},3598,"defineI18nRoute is not working with no_prefix strategy","2025-05-13T14:21:14Z","https://github.com/nuxt-modules/i18n/issues/3598",0.69277436,{"description":3048,"labels":3049,"number":3051,"owner":3022,"repository":3023,"state":3024,"title":3052,"updated_at":3053,"url":3054,"score":3055},"### Environment\n\n------------------------------\n- Operating System: Linux\n- Node Version: v20.19.1\n- Nuxt Version: 3.17.5\n- CLI Version: 3.25.1\n- Nitro Version: 2.11.12\n- Package Manager: npm@10.8.2\n- Builder: -\n- User Config: modules, devtools, nitro, i18n\n- Runtime Modules: @nuxtjs/i18n@9.5.5-29143926.54460af\n- Build Modules: -\n------------------------------\n\n### Reproduction\n\nhttps://stackblitz.com/edit/bobbiegoede-nuxt-i18n-starter-b5evupp3?file=nuxt.config.ts\n\n### Describe the bug\n\nWhen the site is generated or pre-rendered in `strategy: 'prefix'`, Browser language detection is not performed but the site always lands on the `defaultLocale` (`ja` in this case).\nThis is a bug present in both `V9` and `V10` and it would be nice to be fixed before the final release.\n\nCurrently the only solution I have found is to specify not to pre-render the `/` page and to start from the others (by the way it is not correct that this page is prerendered in `strategy: 'prefix'`):\n```js \n routeRules: {\n '/': {\n prerender: false,\n },\n '/ja': {\n prerender: true,\n },\n '/it': {\n prerender: true,\n },\n '/en': {\n prerender: true,\n },\n },\n```\n\n### Additional context\n\nI noticed this error when deploying to Netlify, but you can reproduce it with\n`nuxt build`\n`nuxt preview`\n\n### Logs\n\n```shell\n\n```",[3050],{"name":3019,"color":3020},3678,"Browser language detection on prerendering with `strategy: 'prefix'`","2025-06-05T15:21:38Z","https://github.com/nuxt-modules/i18n/issues/3678",0.69459283,{"description":3057,"labels":3058,"number":3062,"owner":3022,"repository":3023,"state":3063,"title":3064,"updated_at":3065,"url":3066,"score":3067},"### Environment\n\n- Operating System: Linux\r\n- Node Version: v18.20.3\r\n- Nuxt Version: 3.12.4\r\n- CLI Version: 3.12.0\r\n- Nitro Version: -\r\n- Package Manager: pnpm@8.15.6\r\n- Builder: -\r\n- User Config: modules, runtimeConfig, i18n, compatibilityDate\r\n- Runtime Modules: @nuxtjs/i18n@8.3.1\r\n- Build Modules: -\n\n### Reproduction\n\nhttps://stackblitz.com/edit/nuxt-starter-i18n-timothe?file=app.vue,pages/%5B...slug%5D.vue,nuxt.config.ts\n\n### Describe the bug\n\nWhen using `prefix_except_default` strategy, and try to initialize locale with setLocale function but I18n fallback to default locale afterward. It's only work when I set detectBrowserLanguage to `{}` instead of `false`.\n\n### Additional context\n\nI let the CMS handle the routing for the wildcard.\n\n### Logs\n\n```shell\nisSSG false\r\nuseCookie on setup false\r\ndefaultLocale on setup fr\r\ngetLocaleCookie { useCookie: false, cookieKey: false, localeCodes: [ 'fr', 'en' ] }\r\ndetectLocale: initialLocale - fr\r\ndetectLocale: (ssg, callType, firstAccess) - normal setup true\r\ndetectLocale: detectBrowserLanguage (browserLocale, stat, reason, from) - false unknown unknown\r\ndetectLocale: finaleLocale first (finaleLocale, strategy) - prefix_except_default\r\ndetectLocale: finaleLocale second (finaleLocale, detectBrowserLanguage) - false\r\ndetectLocale: finalLocale last (finalLocale, defaultLocale) - fr\r\ndetectLocale: finalLocale - fr\r\nfirst detect initial locale fr\r\n../assets/fr.json is loading ...\r\nloadMessage: (locale) - fr\r\nloadMessage: load { welcome:\r\n { type: 0,\r\n start: 0,\r\n end: 9,\r\n loc: { start: [Object], end: [Object], source: 'Bienvenue' },\r\n body:\r\n { type: 2, start: 0, end: 9, loc: [Object], items: [Array], static: 'Bienvenue' } } }\r\nfinal initial locale: fr\r\nlocale-changing middleware { fullPath: '/',\r\n hash: '',\r\n query: {},\r\n name: 'slug',\r\n path: '/',\r\n params: { slug: '' },\r\n matched:\r\n [ { path: '/:slug(.*)*',\r\n redirect: undefined,\r\n name: 'slug',\r\n meta: {},\r\n aliasOf: undefined,\r\n beforeEnter: undefined,\r\n props: [Object],\r\n children: [],\r\n instances: {},\r\n leaveGuards: Set(0) {},\r\n updateGuards: Set(0) {},\r\n enterCallbacks: {},\r\n components: [Object] } ],\r\n meta: {},\r\n redirectedFrom: undefined,\r\n href: '/' } { fullPath: '/',\r\n path: '/',\r\n query: {},\r\n hash: '',\r\n name: undefined,\r\n params: { slug: '' },\r\n matched:\r\n [ { path: '/:slug(.*)*',\r\n redirect: undefined,\r\n name: 'slug',\r\n meta: {},\r\n aliasOf: undefined,\r\n beforeEnter: undefined,\r\n props: [Object],\r\n children: [],\r\n instances: {},\r\n leaveGuards: Set(0) {},\r\n updateGuards: Set(0) {},\r\n enterCallbacks: {},\r\n components: [Object] } ],\r\n meta: {},\r\n redirectedFrom: undefined,\r\n href: '/' }\r\ngetLocaleCookie { useCookie: false, cookieKey: false, localeCodes: [ 'fr', 'en' ] }\r\ndetectLocale: initialLocale - fr\r\ndetectLocale: (ssg, callType, firstAccess) - normal routing true\r\ndetectLocale: detectBrowserLanguage (browserLocale, stat, reason, from) - false unknown unknown\r\ndetectLocale: finaleLocale first (finaleLocale, strategy) - prefix_except_default\r\ndetectLocale: finaleLocale second (finaleLocale, detectBrowserLanguage) - false\r\ndetectLocale: finalLocale last (finalLocale, defaultLocale) - fr\r\ndetectLocale: finalLocale - fr\r\ndetect locale fr\r\nlocaleSetup false\r\nsetLocale: new -> fr old -> fr initial -> false\r\ndetectRedirect: targetLocale -> fr\r\ndetectRedirect: route -> { to:\r\n { fullPath: '/',\r\n hash: '',\r\n query: {},\r\n name: 'slug',\r\n path: '/',\r\n params: { slug: '' },\r\n matched: [ [Object] ],\r\n meta: {},\r\n redirectedFrom: undefined,\r\n href: '/' },\r\n from:\r\n { fullPath: '/',\r\n path: '/',\r\n query: {},\r\n hash: '',\r\n name: undefined,\r\n params: { slug: '' },\r\n matched: [ [Object] ],\r\n meta: {},\r\n redirectedFrom: undefined,\r\n href: '/' } }\r\ndetectRedirect: calledWithRouting -> true \r\ndetectRedirect: calculate routePath -> /\r\nredirectPath on locale-changing middleware \r\nnavigate options 302 false false false\r\nnavigate isSSG false\r\nsetLocale: new -> en old -> fr initial -> true\r\n../assets/en.json is loading ...\r\nloadMessage: (locale) - en\r\nloadMessage: load { welcome:\r\n { type: 0,\r\n start: 0,\r\n end: 7,\r\n loc: { start: [Object], end: [Object], source: 'Welcome' },\r\n body: { type: 2, start: 0, end: 7, loc: [Object], items: [Array], static: 'Welcome' } } }\r\ndetectRedirect: targetLocale -> en\r\ndetectRedirect: route -> { to: {} }\r\ndetectRedirect: calledWithRouting -> false \r\ndetectRedirect: calculate routePath -> /\r\nredirectPath on setLocale \r\nnavigate options 302 false false true\r\nnavigate isSSG false\n```\n",[3059],{"name":3060,"color":3061},"scope: language detection","1B89B8",3039,"closed","DetectBrowserLanguage rollback to default locale when using `prefix_except_default`","2025-06-08T01:03:16Z","https://github.com/nuxt-modules/i18n/issues/3039",0.6282558,{"description":3069,"labels":3070,"number":3072,"owner":3022,"repository":3023,"state":3063,"title":3073,"updated_at":3074,"url":3075,"score":3076},"### Environment\n\n------------------------------\r\n- Operating System: Windows_NT\r\n- Node Version: v20.10.0\r\n- Nuxt Version: 3.13.2\r\n- CLI Version: 3.13.2\r\n- Nitro Version: 2.9.7\r\n- Package Manager: npm@10.2.3\r\n- Builder: -\r\n- User Config: compatibilityDate, devtools, modules, i18n\r\n- Runtime Modules: @nuxtjs/i18n@8.5.5\r\n- Build Modules: -\r\n------------------------------\n\n### Reproduction\n\n[nuxt-i18n-BUG-REPRODUCE.zip](https://github.com/user-attachments/files/17109191/nuxt-i18n-BUG-REPRODUCE.zip)\r\n\n\n### Describe the bug\n\nwith setting:\r\n```ts\r\ni18n:{\r\n strategy: 'prefix',\r\n locales: ['zh', 'en'], \r\n detectBrowserLanguage: // \r\n\t{\r\n\t\tuseCookie: false, //set true or false, not influenced the result\r\n\t\tcookieKey: 'i18n_redirected',\r\n\t\tredirectOn: 'root' // recommended\r\n\t}\r\n }\r\n```\r\n\r\nWhen Browser request header has `accept-language: zh-CN,zh;q=0.9`\r\nExpect: redirect to `/zh/hello`\r\nBut has: `location: /en/hello`\r\n\r\nsame with [issues/1632](https://github.com/nuxt-modules/i18n/issues/1632)\n\n### Additional context\n\n_No response_\n\n### Logs\n\n_No response_",[3071],{"name":3060,"color":3061},3126,"`detectBrowserLanguage` does not detect browser lang as expected","2025-06-08T01:24:47Z","https://github.com/nuxt-modules/i18n/issues/3126",0.64630044,{"description":3078,"labels":3079,"number":3084,"owner":3022,"repository":3023,"state":3063,"title":3085,"updated_at":3086,"url":3087,"score":3088},"### Environment\n\n- Operating System: macOS Ventura 13\r\n- Node Version: v19.9.0\r\n- Nuxt Version: 3.7.3\r\n- Nitro Version: 2.6.3\r\n- Package Manager: pnpm@8.9.2\r\n- Builder: -\r\n- User Config: modules, i18n\r\n- Runtime Modules: @nuxtjs/i18n@8.0.0-rc.5\r\n- Build Modules: -\n\n### Reproduction\n\nhttps://i18n-test.designbydc.de/\r\nAuth: **bug** /// **i18n-test$**\r\n\r\n-----\r\n**Config:**\r\n```\r\n{\r\n...\r\ni18n: {\r\n defaultLocale: 'de',\r\n langDir: 'locales',\r\n lazy: true,\r\n locales: [\r\n {\r\n code: 'en',\r\n iso: 'en-GB',\r\n name: 'EN',\r\n file: 'en-GB.json'\r\n },\r\n {\r\n code: 'de',\r\n iso: 'de-DE',\r\n name: 'DE',\r\n file: 'de-DE.json'\r\n }\r\n ],\r\n compilation: {\r\n strictMessage: false\r\n }\r\n }\r\n}\r\n```\r\n-----\r\n**Dependencies:**\r\n```\r\n\"devDependencies\": {\r\n \"@nuxt/devtools\": \"latest\",\r\n \"@nuxtjs/i18n\": \"^v8.0.0-rc.5\",\r\n \"nuxt\": \"^3.7.3\",\r\n \"sass\": \"^1.68.0\",\r\n \"sass-loader\": \"^13.3.0\"\r\n },\r\n```\n\n### Describe the bug\n\nAfter pre-rendering pages by default i18n configuration with `nuxt generate`, the browser language detection not automatically redirect visitors to their preferred language on initial page load. \r\n\r\nTo reproduce it click on the language navigation so the default cookie **i18n_redirected** will be enabled. \r\n\r\nThe bug occurs if you click on EN and try to load the page without pathname \"/en\". After that the wrong language link in navigation is active and the content is only partially displayed correctly suitable for the selected language.\n\n### Additional context\n\n_No response_\n\n### Logs\n\n_No response_",[3080,3081],{"name":3060,"color":3061},{"name":3082,"color":3083},"scope: prerender","8B39DF",2507,"Redirection to preferred language not works after pre-rendering pages","2025-06-09T22:33:59Z","https://github.com/nuxt-modules/i18n/issues/2507",0.65665466,{"description":3090,"labels":3091,"number":3093,"owner":3022,"repository":3023,"state":3063,"title":3094,"updated_at":3095,"url":3096,"score":3097},"### Environment\n\n------------------------------\n- Operating System: Linux\n- Node Version: v20.19.1\n- Nuxt Version: 4.0.0\n- CLI Version: 3.26.3\n- Nitro Version: 2.12.0\n- Package Manager: pnpm@8.15.6\n- Builder: -\n- User Config: modules, devtools, i18n\n- Runtime Modules: @nuxtjs/i18n@10.0.1\n- Build Modules: -\n------------------------------\n\n### Reproduction\n\nhttps://stackblitz.com/edit/bobbiegoede-nuxt-i18n-starter-zx2czsy7?file=nuxt.config.ts\n\n### Describe the bug\n\nWhen employing the prefix strategy, navigating to a page without a locale prefix (e.g., localhost:3000/test-page instead of localhost:3000/en/test-page) results in an HTTP 404 (Not Found) error. While the client-side URL subsequently updates to include the correct prefix, the server fails to issue a redirect.\n\nThe server should respond with a redirect to the prefixed URL, similar to how it handles redirects for the root path.\n\n### Additional context\n\n_No response_\n\n### Logs\n\n```shell\n\n```",[3092],{"name":3019,"color":3020},3741,"Redirect to fallback local missing paths other then the root path","2025-07-21T08:40:29Z","https://github.com/nuxt-modules/i18n/issues/3741",0.658928,{"description":3099,"labels":3100,"number":3106,"owner":3022,"repository":3023,"state":3063,"title":3107,"updated_at":3108,"url":3109,"score":3110},"### Environment\n\n- Operating System: Linux\n- Node Version: v22.11.0\n- Nuxt Version: 3.14.1592\n- CLI Version: 3.15.0\n- Nitro Version: 2.10.4\n- Package Manager: pnpm@9.13.1\n- Builder: -\n- User Config: default\n- Runtime Modules: @nuxtjs/i18n@9.1.0\n- Build Modules: -\n\n### Reproduction\n\nrepo: https://github.com/stefanprobst/issue-nuxt-i18n\n\n- clone repo\n- run `pnpm install`\n- run `pnpm build`\n- run `pnpm start`\n- run `curl http://localhost:3000 -H \"accept-language: de\" -i`\n\nresponse is:\n\n```\nHTTP/1.1 200 OK\nContent-Type: text/html; charset=utf-8\nETag: \"59-nAI7AXwKU+EgdRxYLxAT3Q7a2bE\"\nLast-Modified: Wed, 20 Nov 2024 19:51:43 GMT\nContent-Length: 89\nDate: Wed, 20 Nov 2024 19:51:53 GMT\nConnection: keep-alive\nKeep-Alive: timeout=5\n\n\u003C!DOCTYPE html>\u003Chtml>\u003Chead>\u003Cmeta http-equiv=\"refresh\" content=\"0; url=/en\">\u003C/head>\u003C/html>\n```\n\n---\n\nwith `@nuxtjs/i18n` version 9.0.0-rc-2 the response is (you can check out the \"rc2\" branch in the above repository):\n\n```\nHTTP/1.1 302 Found\nset-cookie: i18n_redirected=de; Path=/; Expires=Thu, 20 Nov 2025 19:53:45 GMT; SameSite=Lax\nlocation: /de\ncontent-type: text/html\nDate: Wed, 20 Nov 2024 19:53:45 GMT\nConnection: keep-alive\nKeep-Alive: timeout=5\nContent-Length: 89\n\n\u003C!DOCTYPE html>\u003Chtml>\u003Chead>\u003Cmeta http-equiv=\"refresh\" content=\"0; url=/de\">\u003C/head>\u003C/html>\n```\n\n### Describe the bug\n\nwhile version 9.0.0-rc.2 correctly redirects `/` to `/de` when the `accept-language` header is set to `de`, with version 9.0.0 and 9.1.0 i am redirected to `/en` (which is the default locale)\n\n### Additional context\n\n_No response_\n\n### Logs\n\n```shell\n\n```",[3101,3102,3103],{"name":3060,"color":3061},{"name":3082,"color":3083},{"name":3104,"color":3105},"possible regression","B78041",3240,"[regression] incorrect root redirect on prerendered page (was working fine with v9.0.0-rc.2)","2025-06-22T23:03:37Z","https://github.com/nuxt-modules/i18n/issues/3240",0.66493887,{"description":3112,"labels":3113,"number":3115,"owner":3022,"repository":3023,"state":3063,"title":3116,"updated_at":3117,"url":3118,"score":3119},"### Environment\n\n### Version\n \n```\n- nuxt : \"^3.12.4\",\n- nuxtjs/i18n@8.5.2 || nuxtjs/i18n@8.0.0-rc.3 \n```\n\n### i18n.config.ts\n```\nlazy: true,\nlangDir: 'locales',\nstrategy: 'prefix',\ndefaultLocale: 'en',\nfallbackLocale: 'en',\ndetectBrowserLanguage: {\n redirectOn: 'root'\n},\ncompilation: {\n strictMessage: false\n},\nlocales: [\n { code: 'en', file: 'en.json' },\n { code: 'es', file: 'es.json' },\n { code: 'fr', file: 'fr.json' },\n { code: 'de', file: 'de.json' }\n]\n```\n\n### Reproduction\n\nFor reproduce need to close tabs can't do it by stackblitz.\n\n### Describe the bug\n\n### Example:\n\n```\n1. Open localhost:3000/de, the cookie is set correctly: i18n_redirected=de.\n2. Close the tab.\n3. In a new tab, type localhost:3000/de in the address bar, but don’t hit Enter.\n4. Replace /de with /es, then delete /es and press Enter to navigate to localhost:3000.\n```\n\n### Result:\nIt redirects to `/es`, although `/de` is expected — because there was no actual navigation to `/es`, only manual editing of the address bar.\nThe same happens when selecting a URL from the browser’s dropdown history.\n\nThis causes issues: the browser often autofills URLs with old locales, and even a brief appearance of something like `localhost:3000/en` may change the locale. The user won’t return to their original locale `/de` unless they manually reselect it.\n\nThis behavior is non-obvious. I couldn’t find anything in the docs about change the locale by manual browser bar without transition. Changing the strategy isn’t an option — it's tightly coupled with SEO and app logic.\n\n### Expected behavior:\nLocale should change only after explicit navigation, `not just by typing or selecting a URL in the browser` without transition.\n\n### Question:\nIs this expected behavior? Is there any way to change it via configuration?\n\n### Additional context\n\nIt doesn’t matter that this happens on localhost or production.\n\n### Logs\n\n```shell\n\n```",[3114],{"name":3019,"color":3020},3591,"The locale changes without an actual navigation — just by typing the URL manually or selecting it from browser history.","2025-05-20T23:34:24Z","https://github.com/nuxt-modules/i18n/issues/3591",0.6680193,["Reactive",3121],{},["Set"],["ShallowReactive",3124],{"$fTRc1wZytZ_XrK4EfJfei_Sz-An4H4Yy6syhVxH_PVJc":-1,"$fFyKvxm0NnbnxCKgkRXQbT0nONyR-UKa5vbxlyTXXScI":-1},"/nuxt-modules/i18n/3545"]