Flight PHP RESTful API not returning HTTP Status header

I am using the Flight PHP Framework to develop a RESTful API in PHP. Everything is working perfect except for all my routes the response from the API always contains the HTTP Status '200' even if I set it as '403' or '500' using the PHP code:

header('HTTP/1.1 403 Forbidden');

I am using POSTMAN chrome add on to send calls to the API and it always returns status '200 OK'.

This is the FLIGHT PHP code:

Flight::route('GET /organisation/id', function(){

if (isset($_SERVER['HTTP_APIKEY']) && isset($_SERVER['HTTP_CLIENTID'])) {

    $organisationID = checkAPIKey($_SERVER['HTTP_APIKEY']);

    if ($organisationID !== false) {

        $response = array('status' => '200', 'data' => array('organisationID' => $organisationID));
        header('HTTP/1.1 200 OK');
        header('Content-type: application/json');

        logAPICall($_SERVER['HTTP_CLIENTID'], $organisationID, $_SERVER['REMOTE_ADDR'], json_encode($response), '', $_SERVER['HTTP_APIKEY']);

        echo json_encode($response);

    } else {

        header('HTTP/1.1 403 Forbidden');
        header('Content-type: application/json');
        $responseArray = array( 'status' => '403', 'errorCode' => '1', 'error' => 'Unauthorised API access');

        logAPICall($_SERVER['HTTP_CLIENTID'], $organisationID, $_SERVER['REMOTE_ADDR'], json_encode($responseArray), '', 'No API Key');

        $stmt = null;
        $db = null;

        echo json_encode($responseArray);

    }

} else {

    header('HTTP/1.1 403 Forbidden');
    header('Content-type: application/json');
    $responseArray = array( 'status' => '403', 'errorCode' => '1', 'error' => 'Unauthorised API access or Missing Client Header');

    logAPICall('No Client Header', '', $_SERVER['REMOTE_ADDR'], json_encode($responseArray), '', 'No API Key');

    $stmt = null;
    $db = null;

    echo json_encode($responseArray);

}

});

Any ideas as to why this is happening would be much appreciated! Cheers

Can't answer your question, but have you tried using the framework's json method? It works for me.

    Flight::json(array(
       'status' => 403,
       'errorCode' => '1'
    ), 403);

See source.