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44 lines
1,010 B
Markdown
44 lines
1,010 B
Markdown
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# `<title>` should not be used in _document.js's `<Head>`
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#### Why This Error Occurred
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Adding `<title>` in `pages/_document.js` will lead to unexpected results with `next/head` since `_document.js` is only rendered on the initial pre-render.
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#### Possible Ways to Fix It
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Set `<title>` in `pages/_app.js` instead :
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```js
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// pages/_app.js
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import App, {Container} from 'next/app'
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import Head from 'next/head'
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import React from 'react'
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export default class MyApp extends App {
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static async getInitialProps ({ Component, router, ctx }) {
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let pageProps = {}
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if (Component.getInitialProps) {
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pageProps = await Component.getInitialProps(ctx)
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}
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return {pageProps}
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}
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render () {
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const {Component, pageProps} = this.props
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return <Container>
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<Head>
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<title>My new cool app</title>
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</Head>
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<Component {...pageProps} />
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</Container>
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}
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}
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```
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### Useful Links
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- [The issue this was reported in: #4596](https://github.com/zeit/next.js/issues/4596)
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