angular - How do I get an overlay added behind the kendo-window that will disable the background functions like dialogs do? - St

I am using Kendo UI Window instead of dialog so that user can see the data behind the window but I want to disable the click events behind the window.

I have tried to set the htmlAttributes: {'modal': 'true'} while opening the kendo window using kendo service but its not working.

const windowRef = this.windowService.open({
   title: compTitle,
   content: compName,
   cssClass: "menu-window",
   htmlAttributes: {['modal']: "true"},
});