POST returns 405 while my routes are OK

Hi everyone, I have a weird problem. I try to log in with POST (username/password) to my application with this route

Route::post('login', 'AuthController@postLogin')->name('login.post');

I get a 405

The POST method is not supported for this route. Supported methods: GET, HEAD

In the local development environment everything is fine. In a production server environment I get this error.

I use Postman fos testing.

This is my route list

• GET|HEAD | /
• GET|HEAD | domains -GET|HEAD | login
• POST | login
• GET|HEAD | research-programs
• GET|HEAD | researchers
• GET|HEAD | researchers/profile
• PUT | researchers/profile
• POST | researchers/profile/picture
• GET|HEAD | researchers/random
• GET|HEAD | researchers/search
• GET|HEAD | researchers/{id}
• PUT | researchers/{id}
• POST | researchers/{id}/picture
• GET|HEAD | units

I added a GET /login route and dumped the \Illuminate\Http\Request object to see what I got.

These lines tell me that there is a redirect?

"REDIRECT_REDIRECT_REDIRECT_STATUS" => "200"

"REDIRECT_REDIRECT_REDIRECT_UNIQUE_ID" => "ZQ27NKn65K-juEgBrlpqKgAAAMw"

"REDIRECT_REDIRECT_REDIRECT_URL" => "/login/"

"REDIRECT_REDIRECT_REQUEST_METHOD" => "POST"

"REDIRECT_REDIRECT_REQUEST_SCHEME" => "https"

"REDIRECT_REDIRECT_REQUEST_URI" => "/login/?XDEBUG_SESSION_START=PHPSTORM"

"REDIRECT_REDIRECT_SERVER_PORT" => "443"

"REDIRECT_REDIRECT_SERVER_PROTOCOL" => "HTTP/1.1"

"REDIRECT_REDIRECT_STATUS" => "500"

...

"REDIRECT_REDIRECT_UNIQUE_ID" => "ZQ27NKn65K-juEgBrlpqKgAAAMw"

"REDIRECT_STATUS" => "500"

"REDIRECT_UNIQUE_ID" => "ZQ27NKn65K-juEgBrlpqKgAAAMw"

"REDIRECT_URL" => "/500.shtml"

"REMOTE_PORT" => "54560"

"REQUEST_METHOD" => "GET"

"REQUEST_SCHEME" => "https"

I've been struggling with this for hours now.