WebSocket

Uses standard WebSocket for data transmission.

WebSocket connections can be proxied by other web servers (like NGINX) or by VLESS fallback paths.

Danger

It is recommended to switch to XHTTP to avoid significant traffic characteristics such as WebSocket "ALPN is http/1.1".

Tip

WebSocket inbounds will parse the X-Forwarded-For header received, overriding the source address with a higher priority than the source address got from PROXY protocol.

WebSocketObject

WebSocketObject corresponds to the wsSettings property of the transport configs.

{
  "acceptProxyProtocol": false,
  "path": "/",
  "host": "xray.com",
  "headers": {
    "key": "value"
  }
}

acceptProxyProtocol: true | false

Only used by inbounds. Indicates whether to accept the PROXY protocol.

The PROXY protocol is used to transmit the real source IP and port of connections. If you are not familiar with this, leave it alone.

Commonplace reverse proxy software solutions (like HAProxy and NGINX) can be configured to have source IPs and ports sent with PROXY protocol. Same goes to VLESS fallbacks xver.

When true, after the underlying TCP connection is established, the downstream must first send the source IPs and ports in PROXY protocol v1 or v2, or the connection will be terminated.

path: string

The HTTP path used by the WebSocket connection. Defaults to "/".

If path contains the ed query parameter, early data will be activated for latency reduction, and its value will be the length threshold of the first packet. If the length of the first packet exceeds this value, early data won't be activated. The recommended value is 2560, with a maximum of 8192. Compatibility problems can occur when the value is set too high. Try lowering the threshold when encountering such problems.

host: string

The Host header sent in HTTP requests. Defaults to an empty string. Servers will not validate the Host header sent by clients when left blank.

If the Host header has been defined on the server in any way, the server will validate if the Host header matches.

The current priority of the Host header sent by clients: host > headers > address

headers: map {string: string}

Customized HTTP headers defined in key-value pairs. Defaults to empty.

Browser Dialer

Use the browser to handle TLS, see Browser Dialer