React

PR #19108 caused some Suspense-related DevTools regressions (more info available on #19368) which we did not catch because of the fact that DevTools tests are only run against the version of React in master.

We should follow the precedent of the regression fixtures tests and have CI run DevTools tests against multiple

React version: 17.0.1

Steps To Reproduce

1. npx create-react-app my-app
2. cd my-app
3. npm start (Works like a charm)
4. npm run eject
5. npm i
6. npm start (ReferenceError: React is not defined)

Link to code example: https://codesandbox.io/s/ecstatic-wood-ou6px

What version of Next.js are you using?

11.0.1

What version of Node.js are you using?

14.16.1

What browser are you using?

Chrome

What operating system are you using?

macOS

How are you deploying your application?

Vercel

Describe the Bug

Next.js 11 with webpack 5 seems to break the using-preact example.

`Error: Cannot find module 'webpack/lib/dependencies/ConstD

Box doesn't apply maxWidth prop

    <Box maxWidth="xs">
      Hello World
    </Box>

CodeSandBox:
https://codesandbox.io/s/hardcore-platform-tyfvw?file=/index.js:131-183

Mui version: v4.9.8 ✓

While I try to change header titles by passing array of titles to options like below it does not override the headers. Instead it writes new headers first and original data with old headers again from next cell.

I am experiencing the same problem.

In addition, sheets js is mutating the header array passed in, which is not something I would ever expect.

Example:

const head

https://github.com/jaretburkett/electron-icon-maker

Is there any reason why we can't move the typespec from https://github.com/DefinitelyTyped/DefinitelyTyped to this repo so we do not have to deal with two packages.

We could copy that into this package and add "types": "./lib/main.d.ts" in the package.json