Are there free WebSocket client implementations for Delphi? I found only this one:
WebSockets Delphi Components
but it is not free.
Here is my open source library: https://github.com/andremussche/DelphiWebsockets
I've added support for WebSockets to xxm. Not all handlers support the required IXxmRawSocket interface, but the Apache httpd module (xxmAHttpd) and the SCGI handler do, and I still get the best results with the standalone 'raw' handler xxmHttp. See more here.