CKFinder Explorer Contextmenu Scroll Position Chrome/Safari

In Safari and Chrome if you have many files (thumbnails view, or list view) and you have to scroll the overflow container, right clicking on a file creates a context menu incorrectly positioned (not accounting for scroll position).

It works the same way in the demo (http://ckfinder.com/demo) Expand Images, click on Public Folder, scroll to the bottom of the container and right click on one of the images.