public function back( $fallback = '', $status = 302 ) {
		$url = $this->request->headers( 'Referer' );

		if ( empty( $url ) ) {
			$url = $fallback;
		}

		if ( empty( $url ) ) {
			$url = $this->request->getUrl();
		}

		return $this->to( $url, $status );
	}