gistfile1.php

<?php
// Create a plain request - Working

$request = Request::create('{API_ENDPOINT}', 'GET');
$response = Route::dispatch($request)->getContent();

// Create a request with secret in header

$request = Request::create('{API_ENDPOINT}', 'GET');
$headers = new Symfony\Component\HttpFoundation\HeaderBag(array('secret' => 'A_LONG_SECRET_KEY'));
$request->headers = $headers;
$response = Route::dispatch($request)->getContent();
// secret not sent to server :(