{
  "error_type": "backend_response_verification",
  "description": "The response from the canister failed verification and cannot be trusted. If you understand the risks, you can retry using the raw domain to bypass certification.",
  "details": "The hash of the CEL expression provided by the \"IC-Certificate-Expression\" response header does not exist at the path provided by the \"IC-Certificate\" response header ([\"http_expr\", \"supernova\", \"<$>\"])"
}