Demo Store: Typecheck issues when using the defer utility and 'typeof loader'

[altonchaney]

What is the location of your example repository?

Hydrogen Demo Store

Which package or tool is having this issue?

Oxygen

What version of that package or tool are you using?

1.0.7

What version of Remix are you using?

1.15.0

Steps to Reproduce

After installing the latest Demo Store project dependencies, run the typecheck cli command and note the various errors that arise specifically from using the defer utility.

Expected Behavior

I expect to see no type check errors when using the defer utility from @shopify/remix-oxygen.

Actual Behavior

When typing the route component's useLoaderData using typeof loader, you can see it doesn't properly type any return data from the defer utility in the loader function. However, when I explicitly type that return data there is no longer an issue. So far I've seen this issue in our own project but the latest Demo Store (1.0.2) also has the same issue.

[blittle]

This happens when the server version of remix mismatches with the client version. Make sure to upgrade Hydrogen with the h2 upgrade command which makes sure the dependencies align.