Setting "proxy" in package.json Fails for WebSockets

Created by: kent-h

Expected Behavior

Setting "proxy" in package.json should proxy WebSockets to specified server. (As documented here: "The proxy option supports HTTP, HTTPS and WebSocket connections.")

Actual Behavior

Proxy does not work for WebSocket connections.

Reproducible Demo

No time for this atm. ¯\(ツ)/¯