nextjs - 💡(How to fix) Fix Blank page after post with `cacheComponents: true` [1 participants]

Official PRs (…)
ON THIS PAGE

Recommended Tools

×6

Utilities matched from this issue’s tags and category — try them while you read without losing context.

GitHub issue graph ai analysis

Paste a GitHub issue URL. We fetch that issue, discover linked issues from bodies/comments/timeline, collect linked pull requests, and produce a structured English report.

The report is written in English Markdown for sharing and archival.

Helpful · Quick feedback

Loading…
GitHub stats
vercel/next.js#92992Fetched 2026-04-20 11:58:32
View on GitHub
Comments
0
Participants
1
Timeline
1
Reactions
0
Participants
Timeline (top)
issue_type_added ×1

Error Message

You will see a blank page. There is no error.

Code Example

pnpm i
pnpm build && pnpm start

---

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132
  Available memory (MB): 24576
  Available CPU cores: 10
Binaries:
  Node: 24.10.0
  npm: 11.6.1
  Yarn: 1.22.22
  pnpm: 10.33.0
Relevant Packages:
  next: 16.2.4 // Latest available version is detected (16.2.4).
  eslint-config-next: N/A
  react: 19.2.5
  react-dom: 19.2.5
  typescript: 5.9.3
Next.js Config:
  output: N/A
RAW_BUFFERClick to expand / collapse

Link to the code that reproduces this issue

https://github.com/robert-j-webb/BlankPageAfterPost

To Reproduce

When trying to load a page with a POST action that is using headers, there is a blank page present in the dom.

Clone repo, install and run in prod mode:

pnpm i
pnpm build && pnpm start

Visit localhost:3000/

Click on the submit button.

You will see a blank page. There is no error.

It's expected that the page would merely refresh.

Current vs. Expected behavior

You can see a video of the behavior where a blank page is shown.

https://github.com/user-attachments/assets/67104842-994f-446f-a58d-db71ca527ac0

There is no console or server errors.

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 24.6.0: Mon Jan 19 22:01:41 PST 2026; root:xnu-11417.140.69.708.3~1/RELEASE_ARM64_T8132
  Available memory (MB): 24576
  Available CPU cores: 10
Binaries:
  Node: 24.10.0
  npm: 11.6.1
  Yarn: 1.22.22
  pnpm: 10.33.0
Relevant Packages:
  next: 16.2.4 // Latest available version is detected (16.2.4).
  eslint-config-next: N/A
  react: 19.2.5
  react-dom: 19.2.5
  typescript: 5.9.3
Next.js Config:
  output: N/A

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

cacheComponents

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

next start (local)

Additional context

No response

extent analysis

TL;DR

The issue can likely be resolved by adjusting the POST action handling in the Next.js application to properly handle the request and response.

Guidance

  • Review the code in the BlankPageAfterPost repository to identify how the POST action is being handled, specifically focusing on any custom headers being set.
  • Verify that the server-side rendering (SSR) or static site generation (SSG) is correctly configured in the Next.js application, as issues with these settings can lead to blank pages.
  • Check the next start command configuration to ensure it is set up to handle POST requests correctly in a local development environment.
  • Consider adding error handling or logging to the POST action to gather more information about what might be causing the blank page.

Example

No specific code example can be provided without more details on the implementation, but ensuring that the POST action is handled with appropriate error handling and logging can help diagnose the issue. For example, a basic error handling structure might look like:

try {
  // Handle POST action
} catch (error) {
  console.error('Error handling POST action:', error);
}

Notes

The provided environment information and package versions suggest that the issue might not be directly related to outdated dependencies, given that Next.js and React versions are relatively up to date.

Recommendation

Apply a workaround by adjusting the POST action handling and adding error logging to better understand the issue, as the root cause is not immediately clear from the provided information.

Vote matrix · Quick signals

Works
Did the solution work? Tap to confirm.
Easy Fix
Was it a quick fix?
Time Saver
Did it save you time?
Blocking
Was it severely blocking?
Common Issue
Are others likely hitting this too?
Flaky / Intermittent
Is it intermittent?
Verified / Reproducible
Can you reproduce it reliably?
Loading…

Still need to ship something?

×6

Another batch ranked right after the header list — different links, same matching logic.

Back to top recommendations

TRENDING