public function ical_header_properties() {
		/**
		 * Allows short-circuiting the logic to prevent the x-robots tag from being added to the response headers.
		 *
		 * @param bool $add If the x-robots tag should be added to the response headers.
		 */
		$add = (bool) apply_filters( 'tec_events_ical_header_noindex', true );

		if ( ! $add ) {
			return;
		}

		if ( ! tribe_get_request_var( 'ical' ) && ! tribe_get_request_var( 'outlook-ical' ) ) {
			return;
		}

		header( 'X-Robots-Tag:noindex, nofollow' );
	}