501017 - Horizontal scrolling with arrow keys allowed when not needed, and vertical scrollbar moves

Status: RESOLVED DUPLICATE of bug 295020

(Core :: Layout, defect)

Description

[Eric Oulashin]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.0.11) Gecko/2009060215 Firefox/3.0.11 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.0.11) Gecko/2009060215 Firefox/3.0.11 (.NET CLR 3.5.30729)

On this page, Firefox allows horizontal scrolling with the arrow keys, even though horizontal scrolling shouldn't be needed (all text fits within the window, and there is no horizontal scrollbar).  Additionally, the vertical scrollbar moves as the page is scrolled horizontally.

Reproducible: Always

Steps to Reproduce:
1. Load the page
2. When the page is done loading, click anywhere in the page
3. Use the right & left arrow keys to scroll horizontally
Actual Results:  
When the right arrow key is pressed, the page contents move to the left.  The vertical scrollbar moves along with the page contents.  When the left arrow key is pressed, the page contents and vertical scrollbar move back in the opposite direction.

Expected Results:  
I would not expect the vertical scrollbar to move.  Also, I would not expect horizontal scrolling to be allowed on this page, as it doesn't seem necessary.

Comment 1

[u88484]

Hmm, very interesting.  I love how the scroll bar detaches from the window and moves with the page content.

Comment 2

[Nochum Sossonko [:Natch]]

Not a XUL bug...

Comment 3

[Brian Polidoro]

The scrollbar moves because the scrollbar belongs to a div with overflow:auto, not the body.  So that's not a bug.

As for the horizontal scrolling with the arrow keys that's bug 295020.