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Use 301 for default-locale redirects #16396

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Merged
wackerow merged 1 commit into from
Oct 1, 2025
Merged

Use 301 for default-locale redirects #16396

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22 changes: 21 additions & 1 deletion middleware.ts
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Original file line number Diff line number Diff line change
@@ -1,8 +1,28 @@
import { NextRequest, NextResponse } from "next/server"
import createMiddleware from "next-intl/middleware"

import { routing } from "./src/i18n/routing"
import { DEFAULT_LOCALE } from "./src/lib/constants"

export default createMiddleware(routing)
const handleI18nRouting = createMiddleware(routing)
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@Kentomarine Kentomarine Oct 10, 2025

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// Example middleware for logging requests
function requestLogger(req, res, next) {
console.log(${req.method} ${req.url});
next(); // Call the next middleware
}


export default function middleware(request: NextRequest) {
const response = handleI18nRouting(request)

// Upgrade default-locale strip redirects from 307 to 301 for SEO
if (response.status === 307) {
const pathname = request.nextUrl.pathname
const defaultPrefix = `/${DEFAULT_LOCALE}`
if (
pathname === defaultPrefix ||
pathname.startsWith(`${defaultPrefix}/`)
) {
return new NextResponse(null, { status: 301, headers: response.headers })
}
}

return response
}

// Simplified matcher pattern
export const config = {
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