Feature request: option to use mousewheel for scrolling window even when over timeline-DIV

Hi team, I currently use the timeline component of visjs to display a historical overview of a wineyards which works perfect. I disabled scrolling by mousewheel without altKey (which means i use ALT as zoomKey, which works perfect) when i now scroll down the page using the mousewheel and the mousepointer is over the timeline-DIV page scrolling stops, because its captured by the timeline component.

It would be nice to have an option now to enable page scrolling by mousewheel especially when a zoomKey is specified.

my configuration:

var options = {
	locale: 'de',
	clickToUse: false,
	height: '700px',
	zoomable: true,
	moveable: true,
	selectable: true,
	zoomKey: 'altKey',
};

I am using the latest version 4.21.0 and didn't find an option. To use the lib for our needs I commented out line 9619: event.preventDefault(); in function onMouseWheel() to have scrolling page by mousewheel.

Thanks! Julian