"A client-side exception has occurred" logged if _error.tsx page defines a getInitialProps

[gazs]

Verify canary release

• I verified that the issue exists in the latest Next.js canary release

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:37 PDT 2022; root:xnu-8020.121.3~4/RELEASE_ARM64_T6000
Binaries:
  Node: 16.13.2
  npm: 8.7.0
  Yarn: 1.22.15
  pnpm: 6.11.0
Relevant packages:
  next: 12.2.3-canary.5
  eslint-config-next: N/A
  react: 18.2.0
  react-dom: 18.2.0

warn - Failed to fetch latest canary version. (Reason: Cannot read properties of undefined (reading 'tag_name').)
Detected "12.2.3-canary.5". Visit https://github.com/vercel/next.js/releases.
Make sure to try the latest canary version (eg.: 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

What browser are you using? (if relevant)

n/a

How are you deploying your application? (if relevant)

next start

Describe the Bug

If I define a custom error page following the instructions on https://nextjs.org/docs/advanced-features/custom-error-page#more-advanced-error-page-customizing, the built app will log the following error to console:

 {
    "name": "Internal Server Error.",
    "message": "500 - Internal Server Error.",
    "statusCode": 500
}
A client-side exception has occurred, see here for more info: https://nextjs.org/docs/messages/client-side-exception-occurred

Defining an client-side ErrorBoundary has no effect, in fact it seems to be mounting later than this error message being logged.

Expected Behavior

I should see no error after following the documentation.

Link to reproduction

https://codesandbox.io/s/epic-flower-kydj8s?file=/pages/_error.tsx

To Reproduce

1. build next app and start it (or open codesandbox link above)
2. visit localhost:3000
3. see error message in console
4. see ErrorBoundary rendering after the error is logged and saying there are no errors

[gazs]

This seems to have been resolved in later canary versions

[github-actions]

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