string(6) "error:" object(stdClass)#420 (3) { ["metadata"]=> array(4) { ["x-envoy-upstream-service-time"]=> array(1) { [0]=> string(2) "32" } ["date"]=> array(1) { [0]=> string(29) "Sun, 29 Nov 2020 22:06:20 GMT" } ["server"]=> array(1) { [0]=> string(11) "istio-envoy" } ["x-envoy-decorator-operation"]=> array(1) { [0]=> string(43) "grpc-proxy.default.svc.cluster.local:9200/*" } } ["code"]=> int(2) ["details"]=> string(39) "Cannot read property 'map' of undefined" }