Kibana CSV report show '(empty)' word instead of empty value.

Elastic Stack Kibana
1

Hi,I'm using kibana 7.15 and I've created a scripted field that return empty string > "" Then I create a report and download it, My CSV report show "(empty)" words. How can I do if I want them to be empty value? I've tried return 'null' but it show "-" instead of empty value also.

Here is what I got from the report.
image

2

(empty) is written by the regular string field formatter. Have your script return " " instead of "" when there is no value. Then the CSV will contain a single space character instead of (empty).