V 4.3.18 columndoc.sh

Hi
In V 4.3.18 when I click on any of the column names to get the data from columndoc.csv, I receive an error "Invalid request"

Reproducible with the below

export REQUEST_METHOD=GET
export SCRIPT_NAME="columndoc.sh"
export QUERY_STRING="cpu"
xymoncmd /home/xymon/xymon/cgi-bin/columndoc.sh

Thanks for your help
Steve