279117 - mouse wheel scrolling stops after iframe leaves the top of the page

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Jason Zwolak]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

This is NOT a duplicate of bug 260621.  Perhaps it is a different symptom of the
same problem.

With the example URL (http://mpf.biol.vt.edu/~jzwolak/firefox_scroll_fail.html)
start scrolling down the page with the mouse wheel.  The scrolling stops after a
few lines of scrolling.  There is an iframe in the page and it does not have a
scrollbar, but the main scroll bar is affected by the presence of an iframe.

The problem does not present itself when the keyboard is used for scrolling.

Reproducible: Always

Steps to Reproduce:
1. Go to http://mpf.biol.vt.edu/~jzwolak/firefox_scroll_fail.html
2. Use the mouse wheel to scroll down.
3. The scrolability of the page by the mouse wheel eventually stops and one
cannot scroll up or down.

Actual Results:  
Scrolling "locks up".

Expected Results:  
Continued scrolling down the page.

Comment 1

[Marian POPESCU]

(In reply to comment #0)
> User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)
Gecko/20041107 Firefox/1.0
> Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)
Gecko/20041107 Firefox/1.0
> 
> This is NOT a duplicate of bug 260621.  Perhaps it is a different symptom of the
> same problem.
> 
> With the example URL (http://mpf.biol.vt.edu/~jzwolak/firefox_scroll_fail.html)
> start scrolling down the page with the mouse wheel.  The scrolling stops after a
> few lines of scrolling.  There is an iframe in the page and it does not have a
> scrollbar, but the main scroll bar is affected by the presence of an iframe.
> 
> The problem does not present itself when the keyboard is used for scrolling.
> 
> Reproducible: Always
> 
> Steps to Reproduce:
> 1. Go to http://mpf.biol.vt.edu/~jzwolak/firefox_scroll_fail.html
> 2. Use the mouse wheel to scroll down.
> 3. The scrolability of the page by the mouse wheel eventually stops and one
> cannot scroll up or down.
> 
> Actual Results:  
> Scrolling "locks up".
> 
> Expected Results:  
> Continued scrolling down the page.


With Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b2) Gecko/20050520
Firefox/1.0+ doesn't even scroll ...

Comment 2

[Marian POPESCU]

Does not scroll correctly with this build either:
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b4) Gecko/20050912 Firefox/1.4
ID:2005091200
I can scroll with the mouse wheel, but there is no way to scroll while inside
the frame with the autoscroll feature!

Comment 3

[Adam Guthrie]

Marian, so you're saying that you can scroll fine with the middlemouse button
but not by using autoscroll? The autoscroll not working is bug 251903.

Comment 4

[Karl Tomlinson (:karlt)]

Scrolls fine for me with Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.4) Gecko/20070621 Firefox/2.0.0.4,
or Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9a6pre) Gecko/20070629 Minefield/3.0a6pre.  Thanks for reporting.  Please reopen if you still see the problem.