nextjs - 💡(How to fix) Fix Docs: Malformed URL in proxy.ts links to a doc page that doesn't exist referencing "middleware" instead [1 comments, 2 participants]

However, next will still show this error instead: throw new Error( { cause: error } middleware was renamed to proxy in next.js 16 but the error message above was not changed to reflect this.

TL;DR

Update the error message in utils.ts to reflect the renaming of middleware to proxy in Next.js 16.

Guidance

• Verify that the error message is indeed outdated by checking the utils.ts file in the next package.
• Check the documentation page at https://nextjs.org/docs/messages/proxy-relative-urls to ensure it is up-to-date and accurate.
• Consider updating the error message to point to the correct documentation page, using the new proxy terminology.
• Test the updated error message to ensure it correctly handles relative URLs and points to the correct documentation.

Example

throw new Error(
  `URL is malformed "${String(url)}". Please use only absolute URLs - https://nextjs.org/docs/messages/proxy-relative-urls`,
  { cause: error }
)

should be updated to reflect the correct terminology.

Notes

This fix assumes that the issue is solely due to the outdated error message. If the issue persists after updating the error message, further investigation may be necessary.

Recommendation

Apply workaround: update the error message in utils.ts to reflect the correct terminology, as the documentation page already exists and is up-to-date. This will ensure that users receive accurate and helpful error messages.