Support WebSockets

Proposal

Please add support for WebSockets. Initially, I thought it would not be possible with the WireMock architecture, but then I saw https://wiremock.org/docs/grpc/, which gave me hope that it would be.

At the minimum, a pass-through for the proxy would be greatly appreciated, as in my use case, the server I'm proxying is used for both regular HTTP requests and WebSockets and I need to stub some HTTP requests, while proxying the WebSockets to the server.

References

No response