44d1a1cb15
This PR is part of a larger effort to migrate error messages to MDX and use App Router: https://github.com/vercel/front/pull/23459
37 lines
941 B
Text
37 lines
941 B
Text
---
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title: No Head Import in Document
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---
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> Prevent usage of `next/head` in `pages/_document.js`.
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## Why This Error Occurred
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`next/head` was imported in `pages/_document.js`. This can cause unexpected issues in your application.
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## Possible Ways to Fix It
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Only import and use `next/document` within `pages/_document.js` to override the default `Document` component. If you are importing `next/head` to use the `Head` component, import it from `next/document` instead in order to modify `<head>` code across all pages:
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```jsx filename="pages/_document.js"
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import Document, { Html, Head, Main, NextScript } from 'next/document'
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class MyDocument extends Document {
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static async getInitialProps(ctx) {
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//...
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}
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render() {
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return (
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<Html>
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<Head></Head>
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</Html>
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)
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}
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}
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export default MyDocument
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```
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## Useful Links
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- [Custom Document](/docs/pages/building-your-application/routing/custom-document)
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