[BUG] Can't make On-Demand revalidation work #1052
Description
Describe the bug
It seems On-Demand revalidation does not work while having Next.js project deployed to Cloudflare using OpenNext Cloudflare adapter. Self-hosted project works fine.
Steps to reproduce
I've created repository where issue is reproducible:
https://github.com/grabmateusz/isr-on-demant-revalidate-issue/tree/main
If you build the project and run via:
npm run build
npm run start
you can visit:
http://localhost:3000/ssr
And you will see cached timestamp from the API call and SSR'ed current server time.
If you visit:
http://localhost:3000/isr
You will see cached timestamp from the API call and ISR'ed server time, revalidated each minute.
There are 2 endpoints to invalidate cache:
POST http://localhost:3000/api/revalidate-data-cache
and
POST http://localhost:3000/api/revalidate-isr-cache
First one will invalidate data cache by calling:
revalidateTag("data-cache");
so will take effect on both routes immediately.
Second one will call:
revalidatePath("/isr", "page");
And will affect only /isr route.
Everything works as I want while self-hosting this.
Unfortunately after deploying this to Cloudflare via OpenNext Cloudflare Adapter both revalidate endpoints are not working.
Whenever I visit /isr route I have response with header:
``
x-opennext-cache: HIT
when TTL is reached I have:
x-opennext-cache: STALE
and then when revalidation is done I have:
x-opennext-cache: HIT
open-next.config.ts for reference:
https://github.com/grabmateusz/isr-on-demant-revalidate-issue/blob/main/open-next.config.ts
### Expected behavior
On-Demand revalidation should trigger invalidation and when it's completer route that is a subject of ISR should perform SSR and return up-to-date data with header:
x-opennext-cache: MISS
### @opennextjs/cloudflare version
1.14.4
### Wrangler version
4.56.0
### next info output
```shell
Operating System:
Platform: darwin
Arch: arm64
Version: Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:29 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6000
Available memory (MB): 32768
Available CPU cores: 10
Binaries:
Node: 20.19.2
npm: 10.8.2
Yarn: 1.22.21
pnpm: 10.15.0
Relevant Packages:
next: 15.5.9 // An outdated version detected (latest is 16.1.0), upgrade is highly recommended!
eslint-config-next: 15.4.6
react: 19.1.4
react-dom: 19.1.4
typescript: 5.9.3
Next.js Config:
output: N/A
⚠ An outdated version detected (latest is 16.1.0), upgrade is highly recommended!
Please try the latest canary version (`npm install next@canary`) to confirm the issue still exists before creating a new issue.
Read more - https://nextjs.org/docs/messages/opening-an-issue
Additional context
Shared by me project is a showcase, issue affects much bigger project, where we use self-hosted Next.js project, on-demand revalidation is a fundamental feature and lack of it is blocking migration from self-hosted Next.js to OpenNext Cloudflare Adapter.