Stateless Form - Attempting to pass a record ID to a stateless form for fetch and populate fileds

Stateless Form - Attempting to pass a record ID to a stateless form for fetch and populate fileds

ZC v5
I am using an open URL command (see below)

url = "#Form:Finance?lID=" + input.ID;
openUrl(url,"same window");

to try to pass a parameter to a STATELESS FORM.

This is the URL that is generated when the stateless form is displayed

https://app.zohocreator.com/<zohaccount>/<Zohoapp>/#Form:Finance?ID=3949349000000407063

But the parameter is not being passed through to the stateless form as al alert message shows the value of input.ID as null.

The same code works if I change the stateless form to use a #PAGE (and corresponding page)  instead of #FORM