"forward_client_cert_details": "APPEND_FORWARD",
            "set_current_client_cert_details": {
             "subject": true,
             "dns": true,
             "uri": true
            },
            "upgrade_configs": [
             {
              "upgrade_type": "websocket"
             }
            ],
            "stream_idle_timeout": "0s",

object rewrite: description: Rewrite HTTP URIs and Authority headers. properties: authority: description: rewrite the Authority/Host header with this value. type: string uri: description: rewrite the path (or the prefix) portion of the URI with this value. type: string uriRegexRewrite: description: rewrite the path portion of the URI with the specified regex. properties: match: description: RE2 style regex-based match (https://github.com/google/re2/wiki/Syntax). type: string rewrite: description: The...