i18n subroutes and rewrites not working in dev

Bug report

Describe the bug

When combining new i18n subroutes and rewrites in development mode the rewrite-paths does not work.

To Reproduce

• Clone and npm install: https://github.com/JohnPhoto/next-rewrites
• npm run dev
• navigate to http://localhost:3000/hej or http://localhost:3000/sv/hej
• See the 404

(Now do the same after npm run build && npm run start to see that the page(s) exist as expected)

To lazy to clone? boils down to this config:

module.exports = {
  i18n: {
    locales: ['en', 'sv'],
    defaultLocale: 'sv',
  },
  async redirects() {
    return [
      {
        source: `/_next/data/:deployment/hej.json`,
        destination: `/_next/data/:deployment/sv/hello.json`,
        permanent: true,
      }

    ];
  },
  async rewrites() {
    return [
      {
        source: '/hej',
        destination: '/sv/hello',
      }
    ];
  },
};

Expected behavior

The page named /hello should be shown for sv locale.

System information

• OS: macOS
• Browser (if applies) chrome
• Version of Next.js: 10.0.0
• Version of Node.js: v12.19.0

[ijjk]

Hi, the rewrites + i18n support has been updated in the latest version of Next.js v10.0.5-canary.3 with updated documentation available here https://nextjs.org/docs/api-reference/next.config.js/rewrites#rewrites-with-i18n-support

I’m going to close this since similar issues related to this have been resolved, if anyone is still encountering issues with this please provide an updated minimal reproduction and we can investigate further!

[JohnLindahlTech]

Sadly it did not help. (Updated example repo for “proof”).