in ssr when then namespace not exist in the selected resource/language this is false and render return null

Describe the bug In ssr when then namespace not exist in the selected resource/language this is false and set ready in false.

const ready = !!language && namespaces.every(ns => props.i18n.hasResourceBundle(language, ns));

later when we want make render of the component, this line return null https://github.com/i18next/react-i18next/blob/11e23a4c482a3449ca1e664eedd745975957e3d6/src/NamespacesConsumer.js#L165

Occurs in react-i18next version I’m using “next-i18next”: “^0.31.0” who require “react-i18next@^9.0.4”.

my config is:

{
  defaultLanguage: 'en',
  otherLanguages: ['en-US', 'es-ES'],
  ignoreRoutes: [
    '/_next',
    '/static',
    '/reload',
    '/uploads',
    '/assets',
    'favicon.ico',
  ],
  detection: {
    order: ['locale'],
  },
  customDetectors: [
    {
      name: 'locale',
      lookup: (req, res, options) => {
        const { locale } = res.locals; //locale set "es-ES" or "en-US" based on the domain.
        return locale;
      }
    }
  ],
  fallbackLng: ['en'],
  debug: (process.env.DEBUG && process.env.DEBUG.indexOf('i18n') >= 0),
  saveMissing: (process.env.DEBUG && process.env.DEBUG.indexOf('i18n') >= 0),
  saveMissingTo: 'current',
}

To Reproduce

1. start a new next project with nexti18next.
2. configure your application to change your language on send one or other url
3. run your app to start with language one.
4. see how you have a nice ssr version of your page
5. change the url to load the other language.
6. ssr not happen.

Expected behaviour

1. hasResourceBundle https://github.com/i18next/i18next/blob/master/i18next.js#L602 should return true when some namespace exist in the required language or the fallback language.
2. this line should return true https://github.com/i18next/react-i18next/blob/v9.x.x/src/NamespacesConsumer.js#L49 if the previus condition is true
3. translated component should be render in the server.

[nathanredblur]

thanks for your help, meanwhile I will create the empty namespaces files to not break the render.

[jamuhl]

the community over at next-i18next is large…i’m rather sure they will help you finding the cause.

But like said…while this seems like a problem…it’s not - in production you do not use saveMissing and es-ES and en-US are fully translated