string|array header(string $key = null, string|array|null $default = null)

string|array server(string $key = null, string|array|null $default = null)

bool ajax() Determine if the request is the result of an AJAX call.

$this withHeaders(array $headers) Add an array of headers to the response

__construct(mixed $data = null, int $status = 200, array $headers = array(), int $options)

void __construct(HttpKernelInterface $app) Create a new FrameGuard instance

$this withHeaders(array $headers) Add an array of headers to the response

FrameGuard class FrameGuard (