Getting blank page if I don't comment out fastcgi_finish_request() in AbstractResponse

[gazu1986]

Hi we have a strange problem with Klein. I must mention that we are running on nginx.
If we don't comment out line 412 in
AbstractResponse (fastcgi_finish_request())
we get blank page. We initialise Klein in our routes file like this:

<?php
$klein = new \Klein\Klein();

$serverPath = '';
if(SERVERNAME != ''){
    $serverPath = '/'.SERVERNAME;
}

$klein->respond('GET', $serverPath . '/import/something', function($request) {
    $controller = new Controller\ImportController();
    return $controller->start($request);
});

$klein->respond( $serverPath . '/import/somethingElse', function ($request, $response) {
  $controller = new Controller\ImportController();
  $controller->uploadFiles($request, $response);
});

and so on. We include route file in index and trigger $klein->dispatch(); We have some code executing after dispatch. Could that be the problem? Or is it something else? Thanks in advance for your help.