HTTP 422
webhook_url_rejectedWebhook endpoint URL rejected
A webhook endpoint URL failed the safety checks: it must be https on port 443 and must not resolve to a private or internal address.
Likely causes
- The URL used http, a non-443 port, or a private/loopback host.
- The host resolved to a blocked (SSRF-risk) address.
How to fix
- Use a public https URL on port 443.
- Point the endpoint at an internet-reachable host, not an internal one.
Example response
application/problem+json
{
"type": "https://nowgetitdone.com/docs/api/problems/webhook-url-rejected",
"title": "Webhook endpoint URL rejected",
"status": 422,
"code": "webhook_url_rejected",
"request_id": "req_a1b2c3d4"
}The type field resolves to this page: https://nowgetitdone.com/docs/api/problems/webhook-url-rejected