Repository: create-react-app
Issue: [WDS] Disconnected
Labels: stale,needs triage,issue: bug report

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### Describe the bug
I'm getting this error in Chrome version 92.0.4515.107 and created by `npx create-react-app` on http://localhost:3000/. 




### Did you try recovering your dependencies?
Yes, I deleted node_modules, yarn.lock but couldn't find package-lock.json. 
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% yarn -v
1.22.10

### 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 /Users/erik/.npm/_npx/c67e74de0542c87c/node_modules/create-react-app

  System:
    OS: macOS 11.4
    CPU: (4) x64 Intel(R) Core(TM) i5-4278U CPU @ 2.60GHz
  Binaries:
    Node: 16.2.0 - ~/.nvm/versions/node/v16.2.0/bin/node
    Yarn: 1.22.10 - ~/.nvm/versions/node/v16.2.0/bin/yarn
    npm: 7.13.0 - ~/.nvm/versions/node/v16.2.0/bin/npm
  Browsers:
    Chrome: 92.0.4515.107
    Edge: Not Found
    Firefox: Not Found
    Safari: 14.1.1
  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. `npx create-react-app`
2. cd into the project and run `yarn start`
3.

### Expected behavior

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Bob's your uncle.

### Actual behavior

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![](https://user-images.githubusercontent.com/4912935/126813009-eb2d5324-807a-4608-8bcd-cbb4f06ad09f.png)

### Reproducible demo

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[Link to repository](https://github.com/erikmartinessanches/testtest).

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