upstream_failed

HTTP 409

Proxy rule creation failed

Type URL

https://developer.hostup.se/errors/upstream_failed

Possible detail messages

The CDN proxy rules handler did not return a response.

The proxy rule was accepted, but the created rule could not be loaded. Refresh proxy rules before retrying.

Unable to verify domain ownership against the hosting account.

Example response

{
  "type": "https://developer.hostup.se/errors/upstream_failed",
  "title": "Proxy rule creation failed",
  "status": 409,
  "detail": "The CDN proxy rules handler did not return a response.",
  "code": "upstream_failed",
  "instance": "/api/v2/...",
  "requestId": "req_abc123",
  "timestamp": "2026-04-27T12:00:00.000Z"
}

HTTP status codes

This error can be returned with different status codes depending on context:

409 502 503

Endpoints that may return this error

GET /api/v2/billing/cards List saved cards POST /api/v2/billing/cards Store saved card DELETE /api/v2/billing/cards/{id} Delete saved card POST /api/v2/billing/credit/actions/add-funds Create credit top-up invoice POST /api/v2/billing/invoices/{id}/actions/cancel Cancel invoice POST /api/v2/billing/invoices/{id}/actions/generate-payment-link Generate invoice payment link POST /api/v2/billing/invoices/{id}/actions/resend-email Resend invoice email GET /api/v2/billing/invoices/{id}/credit-note Get credit note PDF GET /api/v2/billing/invoices/{id}/pdf Get invoice PDF

Handling this error

const response = await fetch(url, options);

if (!response.ok) {
  const problem = await response.json();

  if (problem.code === "upstream_failed") {
    // Handle: Proxy rule creation failed
    console.error(problem.detail);
  }
}

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