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Websocket with wrong protocol on HTTPS Development ENV #8075

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@wviveiro

Description

@wviveiro

Describe the bug

When forcing HTTPS=true on NPM start the error "WebSocket connection to 'ws://localhost:3000/sockjs-node' failed: Connection closed before receiving a handshake response"

I couldn't find a solution for this without ejecting the code.

Did you try recovering your dependencies?

It is a brand new npx create-react-app app. The problem is not present in other project running react-scripts 3.0.1

Which terms did you search for in User Guide?

Searched for websocket, force wss
On google I searched for create-react-app websocket, create-react-app force wss, create-react-app https

Environment

System:
OS: macOS 10.15
CPU: (8) x64 Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
Binaries:
Node: 10.16.3 - /usr/local/bin/node
Yarn: 1.5.1 - ~/.yarn/bin/yarn
npm: 6.9.0 - /usr/local/bin/npm
Browsers:
Chrome: 78.0.3904.108
Firefox: 62.0
Safari: 13.0.2
npmPackages:
react: ^16.12.0 => 16.12.0
react-dom: ^16.12.0 => 16.12.0
react-scripts: 3.3.0 => 3.3.0
npmGlobalPackages:
create-react-app: Not Found

Steps to reproduce

  1. npx create-react-app app
  2. cd app
  3. npm i cross-env
  4. replace "start": " react-scripts start" to "start": "cross-env HTTPS=true react-scripts start"
  5. npm start
  6. Open https://localhost:3000
  7. script still tries to open websocket on WS protocol.

Expected behavior

Script opens websocket on WSS protocol

Actual behavior

Script still tries to open websocket on WS protocol.

image

Reproducible demo

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