Validation redirect without errors MessageBag (or inputs values, etc.)

Hello everyone,

I had an issue in my project, where I can't get the MessageBag of errors with the Validator (automatic redirect or not). I've created a project from scratch to test this, and same issue… I think I'm probably missing something, but I can't find what's the problem.

Here you can find the source code (from scratch project) : https://github.com/zetura/lumen-validation-redirect-issue

What I've done :

• Modify the CACHE_DRIVER and SESSION_DRIVER for array (I don't use memcached)
• Create 2 methods in Controller.php
• Add the 2 routes for the Controller
• Create the home.blade.php view
• Uncomment some lines in bootstrap/app.php :
  • Dotenv::load(DIR.'/../'); (for .env cache/session drivers)
  • $app->withFacades(); (for Validator)
  • Illuminate\Session\Middleware\StartSession::class, (for Session)
  • Illuminate\View\Middleware\ShareErrorsFromSession::class, (for validation Errors)

Thanks for your help!