1768683 - Mouse pointer anchor outside picture object when dragging on zoomed page.

Status: RESOLVED DUPLICATE of bug 1767944

(Core :: DOM: Events, defect)

Description

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Steps to reproduce:

Zoom any page to 120% or more
Click on an image that can be dragged to drag it for example to a directory icon.
It can be an image on a web page or on the computer drive, in a directory, does not matter.
The bug show better with two screens with Firefox on one screen and a listing of directory icons on the other screen.
The problem gets amplified with increase zooming
The problem also gets amplified the closer to the edge a picture is click pick to be dragged.

I'm using Firefox version 100 64 bits regular distribution channel.
Bug reproducible on windows 7, 8, 2012 server, and 10. even on Firefox 99 for Linux Ubuntu latest stable version

Actual results:

While the picture is actually dragged along as it should be, the mouse pointer and focus points won't be where it's expected, on the dragged image unless the picture was clicked dead center. The effect is exacerbated the father from the picture center it is click picked. If clicked picked close to the image edge, the mouse pointer and focus point may end up, way outside, the dragged picture.
Any copy and drop interaction will happen under the mouse pointer as it should be. The mouse pointer will be the actual real focus point for the drop while the picture might be many inches away from the focus point.

Expected results:

The mouse anchor point on the drag copy of the picture, the drag copy of the picture, the mouse pointer, and the mouse focus should be one and the same and drag the picture in the normal way.

No idea if it's reproducible on phones or tablets. No way of testing it.