I tried the example "Moving Planets" of the showcase, it work fine in the IE browser and as well as in the preview mode inside CourseLab, but when I use a firefox, the drag and drog seems behave not properly. It will snap to the mouse cursor when the cursor move close to it, or it might move away from the cursor automatically, when I play with the example for several attempt.
I tried the example "Moving Planets" of the showcase, it work fine in the IE browser and as well as in the preview mode inside CourseLab, but when I use a firefox, the drag and drog seems behave not properly. It will snap to the mouse cursor when the cursor move close to it, or it might move away from the cursor automatically, when I play with the example for several attempt.
