Hapijs - HttpOnly cookies disappear when server restarts

When I've defined a cookie as HttpOnly, that cookie disappears from request.state after the server restarts. This doesn't seem to be part of the HttpOnly spec. Is there a way around this in HapiJS?

// cookie definition
server.state('my_cookie', {
    ttl: YEAR_IN_MS,
    isSecure: false,
    isHttpOnly: true,
    encoding: 'base64json',
    clearInvalid: false,
    strictHeader: true,
    path: '/'
}

server.ext('onPreResponse', function(request, reply) {
    console.log(request.state.my_cookie) // returns undefined after server restart

    reply.continue()
})

via dyer