_locale_precedence.mdx

import InlineField from 'src/components/InlineField.astro'; import Aside from 'src/components/Aside.astro';

1. The locale request parameter if present on the HTTP request. This is useful if you already know the user's preferred locale prior to redirecting them to FusionAuth to complete authentication. See example below.

   locale=fr

2. The user selects a language during login using the locale selector or there is a fusionauth.locale cookie present
3. The HTTP Accept-Language header if present on the HTTP request
4. The system default locale as determined by the underlying operating system

The user's preferredLanguages settings are not used to select a locale for the hosted login pages.