Repository: create-react-app
Issue: BigInt error in production build, works fine in dev mode
Labels: needs triage,issue: bug report

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### Describe the bug

Adding the following line causes an error in a site built with `react-scripts build`, but works fine with `react-scripts start`

![image](https://user-images.githubusercontent.com/92771507/144452663-0981ba8d-a4d7-4569-a03d-cc5dfd79c35c.png)
![image](https://user-images.githubusercontent.com/92771507/144450771-53877f70-9cb1-4921-8648-a4980cf34f97.png)

### Did you try recovering your dependencies?

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yes

### Which terms did you search for in User Guide?

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(Write your answer here if relevant.)

### Environment

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Environment Info:

  current version of create-react-app: 4.0.3
  running from C:\Users\lain\AppData\Local\npm-cache\_npx\c67e74de0542c87c\node_modules\create-react-app

  System:
    OS: Windows 10 10.0.19042
    CPU: (32) x64 AMD Ryzen 9 5950X 16-Core Processor
  Binaries:
    Node: 16.13.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.17 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 8.1.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: Not Found
    Edge: Spartan (44.19041.1266.0), Chromium (96.0.1054.41)
    Internet Explorer: 11.0.19041.1202
  npmPackages:
    react: ^17.0.2 => 17.0.2
    react-dom: ^17.0.2 => 17.0.2
    react-scripts: 4.0.3 => 4.0.3
  npmGlobalPackages:
    create-react-app: Not Found

### Steps to reproduce

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1. run `npx create-react-app .`
2. add `const TEST = 2n ** 3n;` to the top of index.js
3. run `yarn build` and `serve build` to see the error
4. run `yarn start` to see it work correctly

### Expected behavior

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The page loads without error.

### Actual behavior

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The page does not load, there is an error in the console.

### Reproducible demo

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https://github.com/0xlain/cra-bug

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