Laravel Sanctum Session Not Shared Across Subdomains in Nuxt App

I'm facing an issue with sharing Laravel Sanctum sessions across subdomains in a Nuxt.js app. Here's the breakdown of my setup:

Laravel Configuration (.env file): Session Configuration:

dotenv Copy code SESSION_DRIVER=database SESSION_DOMAIN=.example.com SESSION_SAME_SITE=none Sanctum Configuration:

dotenv Copy code SANCTUM_STATEFUL_DOMAINS=example.com,dashboard.example.com,marketplace.example.com Nuxt Configuration (.env or .env.development/.env.production): Axios Configuration:

dotenv Copy code API_ENDPOINT=https://api.example.com Nuxt Auth Configuration:

dotenv Copy code APP_URL=https://example.com APP_URL_DASHBOARD=https://dashboard.example.com Nuxt Auth Strategy: I'm using the Laravel Sanctum strategy in Nuxt:

javascript Copy code auth: { strategies: { 'laravelSanctum': { provider: 'laravel/sanctum', url: process.env.API_ENDPOINT, endpoints: { login: { url: '/api/auth/login', method: 'post', propertyName: 'token' }, logout: { url: '/api/auth/logout', method: 'post' }, user: { url:'/api/user', method: 'get', propertyName: false } } }, // Other strategies... }, redirect: { login: ${process.env.APP_URL}/auth/login, logout: ${process.env.APP_URL}/auth/login, callback: ${process.env.APP_URL}/auth/login, home: process.env.APP_URL_DASHBOARD ?? '/' } } Problem: When a user logs in from the root domain (example.com), I can retrieve the authenticated user using this.$auth.user(). However, when navigating to subdomains like dashboard.example.com, the authenticated user is not being recognized (this.$auth.user() returns null).

Expected Behavior: I want the user session to be shared across all subdomains after logging in from the root domain.

Additional Information: Laravel version: 8.x Nuxt.js version: 2.x Laravel Sanctum middleware (EnsureFrontendRequestsAreStateful) is configured appropriately. I appreciate any insights or guidance on resolving this session sharing issue. Thank you!