WEB TObject To JS

Dear Support Team,

According to this blog:
Web Core Blog

I want to convert my tobject to JSValue but i couldn't.
Could you please help me?
Am i doing something wrong?

TMS Web Core Version: v2.5.4.0
Delphi Version : 12.0

Example Project:
Download Project

Best Regards.

You added class variables but you should use class properties.