WIndows server 2019 Error during WebSocket handshake: Incorrect ‘Sec-WebSocket-Accept’ header value

  arr, iis, server, websocket, windows

I am using Windows server 2019 with reverse proxy configured with ARR 3 and hosted my project with node.js and, I am redirecting the website to internal address

When I try to access the website inside the server is working but when i try to access the website outside the network using external address i am getting the error "Error during Web-socket handshake: Incorrect ‘Sec-WebSocket-Accept’ header value"

Kindly help me to resolve the issue.


Source: Windows Questions