Function handler

test/transmit.js:39–44

(request, h)

            const server = Hapi.server();

            const handler = (request, h) => {

                const error = Boom.badRequest();
                error.output.headers.invalid = '\u1000';
                throw error;
            };

            server.route({ method: 'GET', path: '/', handler });
            const res = await server.inject('/');