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Occasional error with useTranslation on Vercel #43

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@DavidDeSloovere

Description

@DavidDeSloovere

Describe the bug

Related to #31 because it's the same error, but not because useTranslation is called in request hook.

Deploy the reproduction to Vercel and put a ping on it.
I have got uptime kuma calling /api/webhook endpoint every minute. Works fine for about 2 hours and then suddenly

[nuxt] [request error] [unhandled] [500] middleware not initialized, please setup `onRequest` and `onAfterResponse` options of `createApp` with the middleware obtained with `defineI18nMiddleware`

Could be a nuxt/i18n issue.

Edit: no issue on Cloudflare, where I also deployed the same reproduction.

Reproduction

https://github.com/DavidDeSloovere/nuxt-i18n-nitro-issue31

Deploy to Vercel. Call /api/webhook.

System Info

Deployed on Vercel. With Node 22.x

Used Package Manager

pnpm

Additional context

The error can also be thrown just after deployment.
My guess would be that the order in which plugin/middleware/eventhandler get executed isn't correct.
So I would assume it has something to do with cold start and the order of the i18n middleware that is running AFTER the request is being handled.

Log of failed request:
"onRequest" comes AFTER "webhook entered"
Image

Log of working request:

Image

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  • Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
  • The provided reproduction is a minimal reproducible of the bug.

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