288284 - position:absolute & overflow!=visible causes bugs with middle-clicking

Status: RESOLVED FIXED

(Core :: Layout: Positioned, defect)

Description

[Alan Trick]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

Too many. see the pages linked.

Reproducible: Always

Steps to Reproduce:
1. Goto http://jellybean.uni.cc/ffbug.html or http://jellybean.uni.cc/ffbug.xhtml
2. Middle-click

Actual Results:  
The image for scrolling appears and the div's start to creap inward.  Also as
text-html the page starts out with extra margin/padding.  Details available on
the pages listed above.

Expected Results:  
nothing

I've tested this with Firefox v. 1.0.0 - 1.0.2

Comment 1

[Alan Trick]

Attachment: bug as text/html

Comment 2

[Alan Trick]

Attachment: bug as application/xhtml+xml

Comment 3

[Giles Robertson]

Confirm.

There are plenty of things that this looks like it might be a dupe of, but with
the exception of Bug 62536, which I don't think it's a dupe of, they all track
down to long-resolved bugs; this may, of course, be a regression.

Reporter: Is the testcase the simplest possible exhibition of the problem?

Comment 4

[Anne (:annevk)]

This bugs needs one testcase showing a single problem. Not one testcase showing
many problems. Other problems should get different bugs.

Comment 5

[Giles Robertson]

Attachment: Simplified testcase

Very simplified testcase of the reporter's first example. I think all the
examples are manifestations of the same bug, but this is as simple as I could
get the testcase.

Comment 6

[Anne (:annevk)]

When I resize the screen I see the trouble. Confirming.

Comment 7

[Anne (:annevk)]

This looks a bit similar to bug 284242.

Comment 8

[Ronald Tilby]

Attachment: Simpler Testcase

Comment 9

[Alan Trick]

(In reply to comment #8)
> Simpler Testcase
You could actually take out the <div class='b'> and put the styles on the <p>
and still have the effect.

I think the middle-click and the resize are the same bug. if you notice very
carefully, the decrease in width from resize and middle clicking are the same.

This isn't a Firefox unique bug.  I opened the page in Nvu and the same bug was
there.

Comment 10

[Anne (:annevk)]

(In reply to comment #9)
> This isn't a Firefox unique bug.

That is exactly the reason why the product is Core, not Firefox.

Comment 11

[Boris Zbarsky [:bzbarsky]]

Fixed by the checkin for bug 240276