The previous POST-based switcher failed silently: CSRF token check
returned 419 when clicking, and the session never persisted.
Root causes:
- POST requires @csrf token, but the test path fetched pages that had
no matching form so the token in the DOM didn't match the session
- Some tenant subdomains had SESSION_DOMAIN scoped differently, so
the cookie set by POST didn't come back on the follow-up GET
- Prod .env had APP_LOCALE=en which took precedence over the config
edit; when session had no locale yet, defaulted to English
Fixes:
1. Route accepts BOTH GET and POST via Route::match(['get', 'post']).
Setting your own language is not a security concern — GET is fine.
2. Route explicitly calls $request->session()->save() before redirect,
forcing the session store to write before the redirect fires.
Also honors ?redirect=<url> query so the user lands back on their
original page rather than referer-guessing.
3. lang-switcher partial rewrites to plain <a href> tags (no @csrf,
no forms). Each link points at /locale/{code}?redirect={current-url}
so the switch happens in a single hop with predictable target.
4. SetLocale middleware hard-codes 'ro' as the ultimate fallback,
ignoring config/env. The Romanian portal is the default
client-facing surface; if a client has no session locale set and
no user account, they see Romanian (safer than English which has
no portal translations).
Suite: 306 passed (853 assertions). Unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Vasyka
b9d096fa59