fetch not being deduped between generateMetadata and page — expected behavior?

[abhishekmardiya]

According to the documentation, fetch calls should be automatically deduped in the same request cycle:

Docs: https://nextjs.org/docs/app/api-reference/file-conventions/layout#fetching-data

Alternatively, when using fetch in Next.js, requests are automatically deduped.

However, when I use the same fetch call in both generateMetadata and the page component, the network request is made twice instead of being deduped.

Minimal reproduction:
https://github.com/abhishekmardiya/fetch-deduped-issue

Is this the intended behavior, or am I missing something?

Reproduction steps:

Navigate to Posts using the button on the homepage (/).

With full URL logging enabled in next.config.js, the server logs show that the same API endpoint is called twice, confirming that the fetch request is not being deduped.

[icyJoseph]

Change the endpoint to https://httpbin.dev/uuid you'll get the same UUID. The logging still happens per fetch call.

[abhishekmardiya]

Okay, got it. Thanks so much for your time and quick response.