CHW-4703 WebhookURLInvalid
webhook url was rejected; it must be an https URL pointing to a publicly routable host
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Default message: webhook url was rejected; it must be an https URL pointing to a publicly routable host
HTTP status:400(client)
Problem. The SSRF guard rejected a webhook URL with 400. Cause.
The URL pointed at a loopback, link-local, or RFC1918 address, used a
non-HTTP(S) scheme, or failed the public-host check. The specific
reason is preserved in the response message. Fix. Use an https://
URL that resolves to a public IP; internal endpoints cannot be called
from the managed Chainsaw service. HTTP 400.