dont write cookies from array session store.

Author: taylorotwell

src/Illuminate/Session/ArrayStore.php

@@ -30,4 +30,17 @@ public function finish(Response $response, $lifetime)
 		// No storage on array sessions...
 	}
 
+	/**
+	 * Write the session cookie to the response.
+	 *
+	 * @param  Illuminate\Cookie\CookieJar  $cookie
+	 * @param  string  $name
+	 * @param  int  $lifetime
+	 * @return void
+	 */
+	public function getCookie(CookieJar $cookie, $name, $lifetime)
+	{
+		//
+	}
+
 }

src/Illuminate/Session/SessionServiceProvider.php

@@ -96,7 +96,10 @@ protected function registerCloseEvent($app, $config)
 
 			$cookie = $session->getCookie($app['cookie'], $config['cookie'], $config['lifetime']);
 
-			$response->headers->setCookie($cookie);
+			if ( ! is_null($cookie))
+			{
+				$response->headers->setCookie($cookie);
+			}
 		});
 	}