wss

Converts a WebSocket request into a new wss request (the server will receive the converted WebSocket URL).

Only supports WebSocket requests ws[s]://domain[:port]/[path][?query]. Transformation tunneling proxies and regular HTTP/HTTPS are not supported.

Rule Syntax

pattern wss://value [filters...]

Parameters	Description	Detailed Documentation
pattern	Expression to match WebSocket request URLs	Match Pattern Documentation
value	Target URL format: domain[:port]/[path][?query] ⚠️ Loading data from files/remote URLs is not supported	Operation Instruction Documentation
filters	Optional filters, supporting matching: • Request URL/Method/Headers/Content • Response Status Code/Headers	Filters Documentation

WebSocket Transformation

ws://www.example.com/path1 wss://www.test.com/path/xxx
wss://www.example.com/path2 wss://www.abc.com/path3/yyy

1. Automatic path concatenation:

   Original request	Conversion result (URL received by the server)
   ws://www.example.com/path1	wss://www.test.com/path/xxx
   ws://www.example.com/path1/a/b/c?query	wss://www.test.com/path/xxx/a/b/c?query
   wss://www.example.com/path2	wss://www.abc.com/path3/yyy
   wss://www.example.com/path2/a/b/c?query	wss://www.abc.com/path3/yyy/a/b/c?query

2. Disable path concatenation: Use < > or () to wrap the path.

   www.example.com/path1 wss://<www.test.com/path/xxx>
   # www.example.com/path1 wss://(www.test.com/path/xxx)

   Original Request	Conversion Result (URL Received by the Server)
   [wss/ws]://www.example.com/path/x/y/z	wss://www.test.com/path/xxx

Only supports forwarding WebSocket requests; other requests match the wss protocol. Result:

• Tunnel Proxy: Ignore matches
• Normal HTTP/HTTPS Request: Returns 502