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nextjs - 💡(How to fix) Fix NextJs 16 metadata renders inside body [1 comments, 2 participants]

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vercel/next.js#85564•Fetched 2026-04-08 02:15:02
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I'm experiencing the same issue mentioned in #79313 .

In Next.js 16, the metadata is rendered incorrectly when running in production mode — it appears inside the <body> instead of the <head>. However, in development mode, the metadata renders correctly in the <head> as expected.

Expected Behavior

Metadata should consistently render inside the <head> tag in both development and production environments.

Actual Behavior

When running next build && next start, the metadata is rendered inside the <body> tag.

extent analysis

TL;DR

The issue with metadata rendering incorrectly in the <body> tag instead of the <head> in Next.js 16 production mode may be resolved by adjusting the configuration or the way metadata is handled in the application.

Guidance

  • Review the differences in configuration between development and production modes to identify any discrepancies that could cause the metadata to render incorrectly.
  • Check the next.config.js file for any settings that might affect metadata rendering, such as custom document or metadata handling.
  • Verify that the metadata is being generated and handled correctly in the page components, ensuring it's placed within the <head> section.
  • Consider comparing the build and start scripts for development and production to see if there are any differences in how the application is compiled and served.

Example

No specific code example can be provided without more details on the current implementation, but ensuring that metadata is correctly placed within the <head> section of the HTML document is crucial.

Notes

The solution may depend on the specific version of Next.js and how metadata is being handled in the application. The issue mentioned in #79313 might provide additional context or solutions.

Recommendation

Apply a workaround by adjusting the metadata handling in the next.config.js or page components to ensure it renders correctly in the <head> section in production mode, as the root cause seems related to the difference in behavior between development and production environments.

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