Meta Overrides

πŸ‘¨β€πŸ’Ό Great! Now we can customize the meta tags on our routes! Let's do a bit more for our profile pages.
πŸ¦‰ You'll notice that if you navigate to the /users/kody route, you'll see the Profile | Epic Notes in the title, which is expected. But if you navigate to a child path, like /users/kody/notes, you'll see only Epic Notes again. It may look like this is an unexpected behavior as we might be expecting the children paths to inherit the parent's meta overrides.

Use case: /users/kody and /users/kody/notes

Let's focus on /users/kody and /users/kody/notes URL paths case for a while: regardless they have a parent-child relationship in terms of their paths, they do not have the same relationship in the REMIX's layout hierarchy. This is how our pages are organized in terms of files inside of the routes directory:
/users/kody 			<=> routes/users+/$username.tsx
/users/kody/notes <=> routes/users+/$username_+/notes.tsx
That little underscore in the name of the folder $username_+ means that the pages inside of it don't use the layout defined in the routes/users+/$username.tsx file (and consequently, they won't use the meta override defined over there). In other words: they aren't "layout-nested", even when they are "url-nested". In summary:
  • In terms of URL path: /users/kody/notes is a child of /users/kody
  • In terms of layout: /users/kody/notes is not a child of /users/kody
The page in /users/kody/notes will, in fact, use the meta override from the first route module hierarchically above routes/users+/$username.tsx, which is the override we defined in the root.tsx. You can always have a better view of the layout-nesting by running npx remix routes in a terminal at the root of a remix project. Doing that you should get something like this:
<Routes>
	<Route file="root.tsx">
		<Route index file="routes/index.tsx" />
		<Route path="resources/healthcheck" file="routes/resources+/healthcheck.tsx" />
		<Route path="users/:username" file="routes/users+/$username.tsx" />
		<Route path="users/:username/notes" file="routes/users+/$username_+/notes.tsx">
			<Route path=":noteId" file="routes/users+/$username_+/notes.$noteId.tsx" />
			<Route path=":noteId/edit" file="routes/users+/$username_+/notes.$noteId_.edit.tsx" />
			<Route index file="routes/users+/$username_+/notes.index.tsx" />
		</Route>
	</Route>
</Routes>