Locale via plugin is incorrect - v9.1.2 regression

[harlan-zw]

Environment

Reproduction

https://stackblitz.com/edit/bobbiegoede-nuxt-i18n-starter-tn4vweh6?file=nuxt.config.ts

Visit a locale prefix path such as /nl and you'll see it prints en when it should be nl.

Describe the bug

Previous to v9.1.2 we were able to get the locale for the route from a plugin. See https://github.com/harlan-zw/nuxt-site-config/blob/main/packages/module/src/runtime/app/plugins/i18n.server.ts

Additional context

This is breaking most of my modules :( If there's a workaround, I'm happy to implement that instead.

Logs

[zsavajji]

Yea I was about to open this issue too, locale is not correctly set on server, getting set to default locale and translations messages are not loaded.

Going back to 9.1.1 fixes this.

[BobbieGoede]

Sorry about this regression 😰 it's clearly a blind spot in our testing that we need to cover.

These last few updates include larger refactors which, among other things, split up the plugin into smaller plugins. The locale detection moved to https://github.com/nuxt-modules/i18n/blob/main/src/runtime/plugins/route-locale-detect.ts (i18n:plugin:route-locale-detect), unfortunately I don't have a simple workaround right now.

I'm a bit busy at my day job at the moment but I'll try and find some time to investigate and fix this regression 🙏

[MickL]

Thank you SO much for the quick fix! When I initially discovered the bug I was thinking this cant be true because nuxt i18n is already in v9 and nuxt-seo in v2. I am happy I made the reproduction and reported :)