Kibana 6.2.3

Error: Content-Type header [application/x-ndjson; charset=UTF-8] is not supported
ErrorAbstract@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:111
StatusCodeError@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:111
respond@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:111
checkRespForFailure@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:111
AngularConnector.prototype.request/<@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:105
processQueue@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58
scheduleProcessQueue/<@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58
$RootScopeProvider/this.$get</Scope.prototype.$digest@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58
$RootScopeProvider/this.$get</Scope.prototype.$apply@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58
done@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58
completeRequest@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58
createHttpBackend/</xhr.onload@http://172.18.7.16:5601/bundles/vendors.bundle.js?v=16602:58

Could we get some more details about your issue here? When is this happening?

now it is resolved.