286828 - vertical scrollbar does not work when position:fixed is set

Status: RESOLVED FIXED

(Firefox :: General, defect)

Description

[Patrick Keenan]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b2) Gecko/20050315 Camino/0.8+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b2) Gecko/20050315 Camino/0.8+

In the page at http://www.student.yorku.ca/~peak/scroll.html, the scroll bar
should work. I also noticed that the text blinker appears in the middle of the
page. The arrow keys still work but the mouse does not.

Reproducible: Always

Steps to Reproduce:
1.Load the page
2.Try to scroll
3.

Actual Results:  
It will not scroll. It acts as if the scrollbar is not there.

Expected Results:  
Scrolled

Comment 1

[Patrick Keenan]

Attachment: A page that should scroll.

Comment 2

[Ryan VanderMeulen [:RyanVM]]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050318
Firefox/1.0+

WFM, so this doesn't appear to affect Windows.

Comment 3

[Ryan VanderMeulen [:RyanVM]]

Also, you said this is a Firefox bug but your user agent string is Camino? Which
one are you using?

Comment 4

[Hiro]

The wheel scroll works. 
However, it doesn't scroll in the slide of the scroll bar. 

Camino 2005040800 (v0.8+)

Comment 5

[jhp (no longer active)]

Confirmed on DeerPark 20050802.

Comment 6

[stefan livens]

Attachment: testcase

added testcase (test.html) that demonstrates better what's going on:
the sidebar "bleeds" into the scrollbar area, obfuscating that area of the
scrollbar, so only the upperpart of the scrollbar is usable/draggable.
This is visible (sometimes) when resizing the window: the scrollbar area gets a
darkgrey color (see screenshot).
Visible in Firefox (Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US;
rv:1.8b3) Gecko/20050712 Firefox/1.0+) and Camino 09a2 (Version 2005080708
(0.9a2+))

Comment 7

[stefan livens]

Attachment: screenshot with obfuscated scrollbar

Comment 8

[philippe (part-time)]

In Firefox 2.0 this still fails.

Minefield (Mac, 20061017), Camino trunk (20061028, v1.2) both work correctly on all testcases here.

There is a similar bug where a fixed positioned div inside a table-cell still causes problems on Mac trunk builds: bug 343830.

Comment 9

[Frank Fen]

See also www.midnightbeep.com

Position:fixed causes a vertical scrollbar freeze.  When I load this site, I am unable to use the vertical scrollbar although it looks like it is OK.  This site works fine with Safari (2.0.4 (419.3) and Firefox (Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.0.8) Gecko/20061025 Firefox/1.5.0.8)

(Tested by saving html and css source locally, modify all urls (except css) to point to midnightbeep.com.  Open html file with only url changes - problem exhibited.  Modify css file to remove all "position:fixed" lines, problem no longer exists.)

Comment 10

[Frank Fen]

Oop - should have said the midnightbeep.com bug shows up on Camino Version 2006091101 (1.0.3) but not on Firefox or Safari

Comment 11

[stefan livens]

The testcase is still not working in Camino (2007022310 (1.1b)) nor Firefox 2.0.0.3
It works in Safari 2.0.4 (419.3)

Comment 12

[Tom]

This is still a problem with Firefox 2.0.0.4.  Is there any plan to fix this since it has been a problem for well over two years now?


Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1.4) Gecko/20070515 Firefox/2.0.0.4

Comment 13

[Frank Fen]

Is this really 2 bugs?

Just rechecked http:www.midnightbeep.com

Camino vertical scroll still not working, background graphics don't load

Firefox vertical scroll works, background graphics don't load

Safari both vertical scroll works, background graphics load

Firefox/2.0.0.8 Mozilla/5.0 Gecko/20071008
Camino: Version 2007101010 (1.5.2)
Safari: Version 2.0.4 (419.3)