1. The problem I’m having:
Certificates created via zero ssl certificate authority randomly started breaking in production
2. Error messages and/or full log output:
{
"level": "error",
"ts": 1762954332.3798602,
"logger": "tls.obtain",
"msg": "will retry",
"error": "[redacted] Obtain: creating certificate: POST https://api.zerossl.com/certificates?access_key=redacted: HTTP 200: <missing error info> (raw={\"id\":\"redacted\",\"type\":\"1\",\"common_name\":\"redacted\",\"additional_domains\":\"\",\"created\":\"2025-11-12 13:32:11\",\"expires\":\"2026-02-10 23:59:59\",\"status\":\"draft\",\"validation_type\":null,\"validation_emails\":null,\"replacement_for\":\"\",\"fingerprint_sha1\":null,\"brand_validation\":null,\"validation\":{\"email_validation\":{\"redacted\":[\"admin@redacted\",\"administrator@redacted\",\"hostmaster@redacted\",\"postmaster@redacted\",\"webmaster@redacted\",\"admin@redacted.com\",\"administrator@redacted.com\",\"hostmaster@redacted.com\",\"postmaster@redacted.com\",\"webmaster@redacted.com\"]},\"other_methods\":{\"redacted\":{\"file_validation_url_http\":\"http:\\/\\/redacted\\/.well-known\\/pki-validation\\/redacted.txt\",\"file_validation_url_https\":\"https:\\/\\/redacted\\/.well-known\\/pki-validation\\/redacted.txt\",\"file_validation_content\":[\"redacted\",\"redacted.com\",\"redacted\"],\"cname_validation_p1\":\"redacted.redacted\",\"cname_validation_p2\":\"redacted.redacted.abd3bfcd7daed3d.redacted.com\"}}},\"signature_algorithm_properties\":null} decode_error=json: unknown field \"signature_algorithm_properties\")",
"attempt": 1,
"retrying_in": 60,
"elapsed": 1.312670204,
"max_duration": 2592000
}
3. Caddy version:
caddy version is 2.9.0
5. Links to relevant resources:
I can see there was an issue raised and it was merged , however want to understand whether the package has been created or not and which caddy version to be used.
Also how are we planning to fix this particular issue in future if it occurs, since response structure can have new fields.