[🐛 Bug]: Workers KV for caching fetch requests is not working

[Jdruwe]

next-on-pages environment related information

System: Platform: darwin Arch: arm64 Version: Darwin Kernel Version 23.5.0: Wed May 1 20:12:58 PDT 2024; root:xnu-10063.121.3~5/RELEASE_ARM64_T6000 CPU: (10) arm64 Apple M1 Pro Memory: 32 GB Shell: /bin/zsh Package Manager Used: npm (10.2.3)

Relevant Packages: @cloudflare/next-on-pages: 1.13.1 vercel: 35.2.2 next: 14.1.0

Description

Hey All!

We are trying to cache fetch requests using the 'Worker KV' optioned descibed at: https://github.com/cloudflare/next-on-pages/blob/main/packages/next-on-pages/docs/caching.md#workers-kv.

1. Configured a binding inside the wrangler.toml file:

[[kv_namespaces]]
binding = "__NEXT_ON_PAGES__KV_SUSPENSE_CACHE"
id = "7e342246dcbb48ec9cf86c439d9d42c1"

2. Added a fetch call to the root page:

const todosResponse = await fetch("https://jsonplaceholder.typicode.com/todos");
const todos: {userId: number, title: string}[] = await todosResponse.json();

3. Visit the app at: https://cloudflare-page-next-data-fetching-cache.pages.dev

4. KV should be populated but still empty

Note: I also tried this on a different project running next.js version 14.2.3 but it's also an issue over there.

UPDATE 02-08-2024:

This seems to be related to the "Workers runtime version", I had it set to 2024-08-02 originally but changed it to an older version: 2023-12-01 just to be sure and lo and behold it starts working.

Reproduction

Reproduction repo can be found at: https://github.com/Jdruwe/cloudflare-page-next-data-fetching-cache

Pages Deployment Method

Direct Upload (wrangler pages publish or the @cloudflare/pages-action GitHub Action)

Pages Deployment ID

58ddbcd4-65c8-4e9b-aaa5-2f5b001706c4

Additional Information

No response

Would you like to help?

• [ ] Would you like to help fixing this bug?

[Jdruwe]

This seems to be related to the "Workers runtime version", I had it set to 2024-08-02 originally but changed it to an older version: 2023-12-01 just to be sure and lo and behold it starts working. Hopefully this helps the maintainers to pinpoint the issue.

[kuririn1]

I can confirm there is an issue with higher versions of the workers runtime. I also changed to version: 2023-12-01 and caching started to work. Please fix it. 🙏

[savokiss]

Confirmed. My new project using runtime 2024-08-02 and doesn't have any data in KV. I changed it to 2024-04-03 and it works!

[lainfox]

2023-12-01 works!

[log-xp]

i am still facing this in 2025-04-18 , please fix .

[dario-piotrowicz]

Hello 🙂 Thank you for the issue and apologies for the late reply.

Earlier this year we released our Cloudflare adapter for OpenNext, and we have been continuously investing effort in its improvement since then. Existing deployments can continue to use the next-on-pages tooling, but the Cloudflare adapter for OpenNext is currently stable and recommended for deployment of Next.js applications to Cloudflare.

As such, we will no longer be maintaining next-on-pages. We recently deprecated the package on npm and we plan to archive this repo on Monday Sep 29, 2025. In preparation for archival, we are closing all open issues and PRs.

If you have concerns, please feel free to reply here before the repo is archived (after that, it will no longer be possible to comment) or to reach out to our team on Discord.

Thanks so much for using and contributing to next-on-pages 🧡