What causes "%s %s%s status:%d trace:%s" in XX-net/XX-Net?

Inspect the logged status code: 403 suggests IP/SNI blocking, 5xx suggests origin issues

%s %s%s status:%d trace:%s

Error message

%s %s%s status:%d trace:%s

What it means

CloudFlareFront.request received a non-200 HTTP status; logs method, host, path, status and the task trace for diagnosis.

Source

Thrown at code/default/x_tunnel/local/cloudflare_front/front.py:107

            self.dispatchs[host] = http_dispatcher

        dispatcher = self.dispatchs[host]
        return dispatcher

    def request(self, method, host, path="/", headers={}, data="", timeout=120):
        dispatcher = self.get_dispatcher(host)
        response = dispatcher.request(method, host, path, dict(headers), data, timeout=timeout)
        if not response:
            self.logger.warn("req %s get response timeout", path)
            return "", 602, {}

        status = response.status
        content = response.task.read_all()
        if status == 200:
            logger.debug("%s %s%s send:%d recv:%d trace:%s", method, host, path, len(data), len(content),
                       response.task.get_trace())
        else:
            self.logger.warn("%s %s%s status:%d trace:%s", method, response.worker.ssl_sock.host, path, status,
                       response.task.get_trace())
        return content, status, response

    def stop(self):
        logger.info("terminate")
        self.connect_manager.set_ssl_created_cb(None)
        for host in self.dispatchs:
            dispatcher = self.dispatchs[host]
            dispatcher.stop()
        self.connect_manager.stop()

        self.running = False

    def set_proxy(self, args):
        logger.info("set_proxy:%s", args)

        self.config.PROXY_ENABLE = args["enable"]
        self.config.PROXY_TYPE = args["type"]

View on GitHub (pinned to cfa5bc17b6)

Solutions

Inspect the logged status code: 403 suggests IP/SNI blocking, 5xx suggests origin issues
Rotate front IPs / domains
Verify the target host configuration

Defensive patterns

Strategy: fallback

Try / catch

content, status, resp = front.request(...)
if status != 200:
    handle_block_or_origin_error(status)

Prevention

Handle 403 as IP-blocking signal and rotate fronts
Don't assume 200; always branch on status

When it happens

Trigger: Any dispatcher response whose status != 200, e.g. 403/502/525 from the CloudFlare edge.

Common situations: CloudFlare blocking (403), origin errors (502/504), or CAPTCHA/challenge pages when the fronted host is unavailable.

Related errors

AI-assisted analysis of XX-net/XX-Net@cfa5bc17b6 (2026-08-27). Data as JSON: /api/errors/79df26d71ebe1e69. Report an issue: GitHub.