* **Version**: v10.16.3 * **Platform**: Linux zagent 4.4.0-159-generic nodejs/node#187-Ubuntu SMP Thu Aug 1 16:28:06 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux * **Subsystem**: tls Sometimes I got UNABLE_TO_VERIFY_LEAF_SIGNATURE error for the same requests when I didn't get before. For example: - https://images-eu.ssl-images-amazon.com:443/images/I/412W1GAcm3L.js?AUIClients/CardJsRuntimeBuzzCopyBuild - https://play.google.com/store/apps/details?id=com.lemondo.Roll&gl= Why? How can I get a server certificate to verify it if error raised?