WebSocket Router: preserveRoutingHeaders

preserveRoutingHeaders controls whether service-id routing headers are sent to the upstream service after the gateway has selected a target.

• Type: Boolean
• Default: false

When false, the gateway removes these headers from the upstream request:

• Service-Id
• service_id
• serviceId

preserveRoutingHeaders: false

Keep the default unless the upstream application explicitly consumes one of these headers. Setting the property to true exposes client-supplied routing metadata to that application. It does not preserve browser credentials for the control-plane route: /ctrl/mcp applies an additional credential-sanitization step and installs only the trusted authorization created by the gateway.