Rendering error on routes that fetch data with `revalidate`

[orinokai]

Link to the code that reproduces this issue

https://github.com/orinokai/test-next-cache-invalidation

To Reproduce

1. Start the application with next start
2. Navigate to the index page
3. Observe the following error in the console: TypeError: Response.clone: Body has already been consumed.
4. (May or may not be related, but the following behaviour also started in the same canary version: continually reload the page and observe that, after the 5s TTL, there is a 4-5s delay before a subsequent request will trigger a re-render)

Current vs. Expected behavior

Following the steps above, I would expect the page to render without errors and for the page to be re-rendered ~5s after the last render when continuously reloading in a browser

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 23.6.0: Mon Jul 29 21:14:30 PDT 2024; root:xnu-10063.141.2~1/RELEASE_ARM64_T6000
  Available memory (MB): 32768
  Available CPU cores: 10
Binaries:
  Node: 20.9.0
  npm: 10.1.0
  Yarn: 1.22.22
  pnpm: 8.15.5
Relevant Packages:
  next: 15.0.0-canary.149 // Latest available version is detected (15.0.0-canary.149).
  eslint-config-next: 15.0.0-canary.149
  react: 19.0.0-rc-7771d3a7-20240827
  react-dom: 19.0.0-rc-7771d3a7-20240827
  typescript: 5.5.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Not sure

Which stage(s) are affected? (Select all that apply)

next start (local)

Additional context

I tested my repro against different canary versions and the first one that introduced the bug was next@15.0.0-canary.135

[serhalp]

@wyattjoh I've confirmed #70082 fixes this issue. The latest release also fixes the other issue @orinokai mentioned in step 4 above (technically I can't be sure if that's due to the same PR or not).

Confirmed by running the same repro steps as above but with this first:

npm i next@canary react@19.0.0-rc-206df66e-20240912 react-dom@19.0.0-rc-206df66e-20240912

[orinokai]

Fixed by #70082

[github-actions]

This closed issue has been automatically locked because it had no new activity for 2 weeks. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.