Why might redirect not work in Slim 3.0?

Question

PHP

Hello.
I had such a problem - redirect does not work for me.
routes.php

$app->get('/','HomeController:index')->setName('home');
$app->get('/',function($req,$res){ // Не работает
  return $res->withHeader('Location', '/auth/signup');
});

AuthController.php

public function postSignUp($req, $res) {
return $res->withRedirect($this->router->pathFor('home'));//не работает
//return $res->withStatus(302)->withHeader('Location', '/'); //тоже не работает
}

require __DIR__.'/../vendor/autoload.php';

$app = new \Slim\App();
$app->get('/', function ($request, $response, $args) { 
    return $response->withHeader('Location', '/auth/signup');// Не работает
});

$app->get('/auth/signup', function ($request, $response, $args) {
    return 'Hello';
});

$app -> run();

composer

{
    "require": {
        "predis/predis": "^1.1",
        "slim/twig-view": "^2.1",
        "respect/validation": "^1.1",
        "slim/slim": "^3.0"
    },
  "autoload": {
    	"psr-4": {
    		"App\\":"app"
    	}
    }
}

After registering a user, it should be redirected to the home page, but this does not happen, nothing happens at all. it just executes the postSignUp method and nothing happens.
What could be the problem? Thank you.

Answer 1

Check what headers the script generates, it should be something like:
Also, what is your bundle for Nginx + Apache or Ngnix + php-fpm, perhaps the environment variable for the class is not correctly formed:

'environment' => function () {
        return new Slim\Http\Environment($_SERVER);
    },

those. pay attention to the REQUEST_URI variable