Webhooks
Fired when a job reaches the `failed` terminal state.
postWebhookjobFailed
Headers
OnPage-Eventstring required
OnPage-Delivery-Idstring required
OnPage-Timestampstring required
OnPage-Signaturestring required
Payload
Response
Ack. Any 2xx is accepted.
Changes
Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.