warning prop classname did not match. server material ui

Colorful Caterpillar answered on September 7, 2020 Popularity 9/10 Helpfulness 2/10

answer warning prop classname did not match. server material ui

related NextJS + Material-UI - Warning: Prop className did not match

warning prop classname did not match. server material ui

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import React from 'react';
import Document, { Html, Head, Main, NextScript } from 'next/document';
import { ServerStyleSheets } from '@material-ui/styles'; // works with @material-ui/core/styles, if you prefer to use it.
import theme from '../src/theme'; // Adjust here as well

export default class MyDocument extends Document {
  render() {
    return (
      <Html lang="en">
        <Head>
          {/* Not exactly required, but this is the PWA primary color */}
          <meta name="theme-color" content={theme.palette.primary.main} />
        </Head>
        <body>
          <Main />
          <NextScript />
        </body>
      </Html>
    );
  }
}

// `getInitialProps` belongs to `_document` (instead of `_app`),
// it's compatible with server-side generation (SSG).
MyDocument.getInitialProps = async (ctx) => {
  // Resolution order
  //
  // On the server:
  // 1. app.getInitialProps
  // 2. page.getInitialProps
  // 3. document.getInitialProps
  // 4. app.render
  // 5. page.render
  // 6. document.render
  //
  // On the server with error:
  // 1. document.getInitialProps
  // 2. app.render
  // 3. page.render
  // 4. document.render
  //
  // On the client
  // 1. app.getInitialProps
  // 2. page.getInitialProps
  // 3. app.render
  // 4. page.render

  // Render app and page and get the context of the page with collected side effects.
  const sheets = new ServerStyleSheets();
  const originalRenderPage = ctx.renderPage;

  ctx.renderPage = () =>
    originalRenderPage({
      enhanceApp: (App) => (props) => sheets.collect(<App {...props} />),
    });

  const initialProps = await Document.getInitialProps(ctx);

  return {
    ...initialProps,
    // Styles fragment is rendered after the app and page rendering finish.
    styles: [...React.Children.toArray(initialProps.styles), sheets.getStyleElement()],
  };
};

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: classname javascript material-ui prop server

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Contributed on Sep 07 2020

Colorful Caterpillar

0 Answers Avg Quality 2/10

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NextJS + Material-UI - Warning: Prop className did not match

Comment

// The problem is the SSR rendering in Next.js, which produces the style fragment before the page is rendered.

// Using Material UI and Next.js (as the author is using), adding a file called _document.js solved the problem.

// Adjusted _document.js

import React from 'react';
import Document, { Html, Head, Main, NextScript } from 'next/document';
import { ServerStyleSheets } from '@material-ui/styles'; // works with @material-ui/core/styles, if you prefer to use it.
import theme from '../src/theme'; // Adjust here as well

export default class MyDocument extends Document {
  render() {
    return (
      <Html lang="en">
        <Head>
          {/* Not exactly required, but this is the PWA primary color */}
          <meta name="theme-color" content={theme.palette.primary.main} />
        </Head>
        <body>
          <Main />
          <NextScript />
        </body>
      </Html>
    );
  }
}

// `getInitialProps` belongs to `_document` (instead of `_app`),
// it's compatible with server-side generation (SSG).
MyDocument.getInitialProps = async (ctx) => {
  // Resolution order
  //
  // On the server:
  // 1. app.getInitialProps
  // 2. page.getInitialProps
  // 3. document.getInitialProps
  // 4. app.render
  // 5. page.render
  // 6. document.render
  //
  // On the server with error:
  // 1. document.getInitialProps
  // 2. app.render
  // 3. page.render
  // 4. document.render
  //
  // On the client
  // 1. app.getInitialProps
  // 2. page.getInitialProps
  // 3. app.render
  // 4. page.render

  // Render app and page and get the context of the page with collected side effects.
  const sheets = new ServerStyleSheets();
  const originalRenderPage = ctx.renderPage;

  ctx.renderPage = () =>
    originalRenderPage({
      enhanceApp: (App) => (props) => sheets.collect(<App {...props} />),
    });

  const initialProps = await Document.getInitialProps(ctx);

  return {
    ...initialProps,
    // Styles fragment is rendered after the app and page rendering finish.
    styles: [...React.Children.toArray(initialProps.styles), sheets.getStyleElement()],
  };
};

Popularity 6/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: classname javascript match m

Link to this answer
Share Copy Link

Contributed on May 03 2022

Mappy Show

0 Answers Avg Quality 2/10

warning prop classname did not match. server material ui

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