Use 3rd party JS libraries (including JQuery), call Javascript functions, access object properties and methods. Implement game objects, and algorithms in Javasc...
Just ckecked it with 234.4. Works fine. Please make sure that:
— You have the latest plugin version installed
— "Use worker" is set to "No" in the project properties pane
— You read the manual here: readymag.com/valerypopoff/valerypopoff-js-plugin
Are there any errors in the javascript console in your browser? Or how do you know that it doesn't work?