What's the reason? I believe latest versions should just work untranspiled.

Oh that's right, I've fixed it now.

Crafting the title in this place feels like a leaky abstraction. Using endsWith to compare routes feel very wrong to me.

Do we need to make it possible for the title property in the navigation structure to be a function that returns a string or something?

title: ({ params }) => {
  if (params.orderId === 'new') return 'new Order';
  if (typeof params.orderId === 'number') return `Order ${orderId}`
  return null; // default
}

And in case of Crud, is there a way in which the Crud component could take care of this automatically? Or any other nice way to automate this.

You're right, we could definitely tackle this more elegantly and the way the CRUD integrates with the PageContainer and its title and even the breadcrumbs aren't ideal right now... I'll try to find a better solution for all of this in a separate PR.