[FF] scroll to wrong position on writing

[debe]

When you set a MozTransform scale factor to the content body of the editor, when writing something the browser scroll in the wrong place. That happens too with pageDown button, the document scrolls down but not to the real end of the enlarged document, but to the end of the document without the transformation.

It seems that Firefox don't consider that zoom scale factor, that others browser do.

To reproduce this bug after the CKEDITOR.replace part add (content should be long enough to scroll):

CKEDITOR.on('instanceReady', function(ev){
            var body = ev.editor.document.getBody().$;
            body.style.MozTransformOrigin = "top left";
            body.style.MozTransform = "scale(1.5)";
            body.style.OTransformOrigin = "top left";
            body.style.OTransform = "scale(1.5)";
            body.style.TransformOrigin = "top left";
            body.style.Transform = "scale(1.5)";
            // IE
            body.style.zoom = 1.5;
        });

[Jakub Ś]

Problem can be reproduced only in Firefox from CKEditor 3.0.

[Jakub Ś]

I could no longer reproduce this issue in FF 41.0.1 and CKEditor 4.5.4. Please see attached image. Scrolling and paging works as expected.

NOTE: I have removed bottom content which was aligned to right because I had problems locating the cursor.