Fixed not working websocket proxy

[mxschmitt]

Hello

this PR fixes that websockets, e.g. via Socket.io won't be proxied through the HTTP proxy.
For more information check out issue: #5280 there are also some users who tested it successfully.

Best regards

Max

[mrmckeb]

Hey @mxschmitt, can you please help me to understand the /sockjs-node/ part of this? Why do we exclude that?

[mxschmitt]

Hey @mxschmitt, can you please help me to understand the /sockjs-node/ part of this? Why do we exclude that?

@mrmckeb the socksjs part is there, because the proxy should not proxy the request from the auto reloading server to the other server. So I don't saw another solution to implement it by the path name.

create-react-app/packages/react-scripts/config/webpackDevServer.config.js

Lines 63 to 68 in 30ee52c

	// Enable hot reloading server. It will provide /sockjs-node/ endpoint
	// for the WebpackDevServer client so it can learn when the files were
	// updated. The WebpackDevServer client is included as an entry point
	// in the Webpack development configuration. Note that only changes
	// to CSS are currently hot reloaded. JS changes will refresh the browser.
	hot: true,

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