Waiting for update signal from WDS / websocket closed before connection established

[jason-e-gross]

When HMR tries starting, this message shows up in the console -- and there's no socket connection. The first websocket network call says its switching protocols

then the second one produces the error, and right after is some xhr_streaming network call.

[liborpansky]

Hi, I wasn't able to reproduce the issue on Google Chrome 79 on Windows. 😞
There are similar issues regarding socketjs-client disconnections, so you're not alone...