public function register_rest_endpoints() {
		register_rest_route( Service_Provider::NAME_SPACE, '/html', [
			'methods'             => \WP_REST_Server::READABLE,
			/**
			 * @todo  Make sure we do proper handling of cache longer then 12h.
			 */
			'permission_callback' => static function ( \WP_REST_Request $request ) {
				return wp_verify_nonce( $request->get_param( '_wpnonce' ), 'wp_rest' );
			},
			'callback' => static function ( \WP_REST_Request $request ) {
				View::make_for_rest( $request )->send_html();
			},
			'args' => [
				'url' => [
					'required'          => true,
					'validate_callback' => static function ( $url ) {
						return is_string( $url );
					},
					'sanitize_callback' => static function ( $url ) {
						return filter_var( $url, FILTER_SANITIZE_URL );
					}
				],
			],
		] );
	}