Status 404 for existing pages

[dragomano]

What version of starlight are you using?

0.24.1

What version of astro are you using?

4.10.1

What package manager are you using?

pnpm

What operating system are you using?

Windows

What browser are you using?

Firefox

Describe the Bug

Startlight 0.23.4:

Starlight 0.24.0/0.24.1:

In both cases, the pages exist and are displayed.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-ztcekb

Participation

• I am willing to submit a pull request for this issue.

[delucis]

Thanks for reporting this @dragomano — I think this is caused because we now use Astro’s i18n API under the hood and I guess that is reporting 404s for those routes even though the exist? Definitely a weird bug given pages render fine in dev and also build fine — it’s just the status code which is being set incorrectly.

I’m curious if anyone has seen this in other uses of Astro’s i18n features? 🤔

cc @ematipico

[lorenzolewis]

I'm curious if this is an issue with en being hard-coded in some places in Starlight? Based on the repro, the locale config looks like this:

{
  defaultLocale: 'root',
    locales: {
      root: {
        label: 'Русский',
        lang: 'ru',
      },
    },
}

Some error messages when running npm run dev:

npm run dev

> @example/[email protected] dev
> astro dev

10:08:52 AM [vite] Error when evaluating SSR module /node_modules/@astrojs/starlight/utils/i18n.ts:
|- AstroUserError: Failed to get locale informations for the 'en' locale.

10:08:52 AM [vite] Error when evaluating SSR module /node_modules/@astrojs/starlight/integrations/shared/localeToLang.ts: failed to import "/node_modules/@astrojs/starlight/utils/i18n.ts"
|- AstroUserError: Failed to get locale informations for the 'en' locale.

10:08:52 AM [vite] Error when evaluating SSR module /node_modules/@astrojs/starlight/integrations/expressive-code/translations.ts: failed to import "/node_modules/@astrojs/starlight/integrations/shared/localeToLang.ts"
|- AstroUserError: Failed to get locale informations for the 'en' locale.

10:08:52 AM [vite] Error when evaluating SSR module /node_modules/@astrojs/starlight/integrations/expressive-code/index.ts: failed to import "/node_modules/@astrojs/starlight/integrations/expressive-code/translations.ts"
|- AstroUserError: Failed to get locale informations for the 'en' locale.

10:08:52 AM [vite] Error when evaluating SSR module /node_modules/@astrojs/starlight/index.ts: failed to import "/node_modules/@astrojs/starlight/integrations/expressive-code/index.ts"
|- AstroUserError: Failed to get locale informations for the 'en' locale.

10:08:52 AM [vite] Error when evaluating SSR module /home/projects/github-ztcekb/astro.config.mjs: failed to import "/node_modules/@astrojs/starlight/index.ts"
|- AstroUserError: Failed to get locale informations for the 'en' locale.

[astro] Unable to load your Astro config

[AstroUserError] Failed to get locale informations for the 'en' locale.
  Hint:
    Make sure to provide a valid BCP-47 tags (e.g. en, ar, or zh-CN).

[HiDeoo]

Some error messages when running npm run dev:

The error you're seeing is probably related to #1986 and I'm assuming you may have opened the repro using Safari.

I'm currently working on a fix for that one right now.

[lorenzolewis]

Ah yup, it was Safari. Once again my testing in the worst browser for JS gets me again 😅

[ematipico]

How do I get to see the error from the reproduction? It just fails (using firefox) cc @dragomano

[lorenzolewis]

If you’re troubleshooting you should also update to starlight 0.24.1 as it fixed an issue related to this. But it may have not resolved the full issue.

[dragomano]

I've updated dependencies. It's still a problem.

[ematipico]

Changing root.lang to en fixes the issue... so maybe there are places where starlight is pulling en instead of the configured root lang

[delucis]

Fixed in Starlight v0.24.2 — thanks again for reporting!