Webpack-dev-server: devServer.sockPath

[jiankafei]

Bug report

What is the current behavior?

1. Using "devserver.sockPath" will make hot updates cross domain.
2. Devserver.sockPath does not work.

If the current behavior is a bug, please provide the steps to reproduce.

1. Use nginx to proxy the local service. The local service uses domain name access. If you do not use "devserver.sockPath", there will be no cross domain problem. If you use it, there will be cross domain problem.
2. Devserver.sockPath itself is not working.

What is the expected behavior?

1. Correct hot update with devserver.sockPath.
2. Devserver.sockPath works normally.

Other relevant information:
webpack version: 4.43.0
Node.js version: 12.16.1
Operating System: win10
Additional tools: nginx, yarn

[alexander-akait]

Please create reproducible test repo

[alexander-akait]

Can't reproduce

[jiankafei]

Please create reproducible test repo

Wait a moment

[jiankafei]

Please create reproducible test repo
Use this project to test：
https://github.com/jiankafei/wds-test

[jiankafei]

@evilebottnawi https://github.com/jiankafei/wds-test

[alexander-akait]

@jiankafei Thanks I will look in this in near future

[desmap]

@jiankafei @evilebottnawi I have the same issue and despite having devServer.sockPath: '/app/sockjs-node' I get in Chrome Inspector first...

sockjs.js:1606 GET http://mydevserver.com:8999/sockjs-node/info?t=1600683780379 404 (Not Found)

...then a few times...

WebSocket connection to 'ws://mydevserver.com:8999/app/sockjs-node/224/cidsxlef/websocket' failed: Invalid frame header
[WDS] Disconnected!

fwiw, I have devServer reverse-proxied via express and http-proxy-middleware.
I tried with both webpack 4.43 and 5.0.0-rc.0