Will middleware size affect the website?

[levipadre]

Is this a problem?

I have a simple middleware for different domains:

import createMiddleware from 'next-intl/middleware';
 
export default createMiddleware({
    locales: ['en', 'fr'],
    defaultLocale: 'en',
    alternateLinks: false,
    domains: [
        {
            domain: 'next.domain.com',
            defaultLocale: 'en',
            locales: ['en']
        },
        {
            domain: 'next.domain.fr',
            defaultLocale: 'fr',
            locales: ['fr']
        }
    ],
    localeDetection: false
});

export const config = {
    matcher: ['/((?!api|_next|.*\\..*).*)']
}

[amannn]

Hey @levipadre and thanks for the question!

I noticed this too recently, it seems like after a Next.js release the size of the middleware grew significantly. If I'm not mistaken, this happened when dynamic open graph image generation was released. I didn't have time to verify this yet or analyze where/how this can be fixed—this might just be a bug on the Next.js side.

In case you manage to find the cause of this, it would be helpful if you could share it here!