311623 - {inc}table with width="95%" inside positioned div gets thinner when button in table is clicked

Status: RESOLVED FIXED

(Core :: Layout: Block and Inline, defect)

Description

[Hugh Allen]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b5) Gecko/20051006 Firefox/1.4.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b5) Gecko/20051006 Firefox/1.4.1

The attached demo page gets narrower (and sometimes wider) when the button at
the bottom ("click me!") is clicked or moused over with the left button
depressed and the the "click me!" button having focus. The demo page has *no*
javascript, just a DIV with "position:absolute" style and a table with 95%
width. The button should do nothing, and does so in non-Moz browsers.

Originally this came from an internet banking page, and it's annoying when you
try to click a form submit button and it moves away from the mouse! I changed it
to a normal "button" element to get rid of the form and simplify the page.

Reproducible: Always

Steps to Reproduce:
1. Open the attached bug demo.
2. Click / play with the button
3. reload the page to restore normal appearance

Actual Results:  
table width changes

Expected Results:  
page should not change - button does nothing

I've only tried it on Firefox 1.5beta1/2 under win2000 so far but seems likely
it's platform-neutral. Also occurs under Mozilla 1.8Beta.

Comment 1

[Hugh Allen]

Attachment: minimal test case for bug

Comment 2

[Hugh Allen]

changed testcase flag to "+" since I've made a stripped-down testcase
(attached). I hope "+" is correct and it's not supposed to be "?".

Comment 3

[Jesse Ruderman]

Changing testcase flag to testcase keyword.  (The testcase flag has to do with
inclusion in regression test suites.)

Comment 4

[Jesse Ruderman]

Regressed on trunk between 2004-10-29 and 2004-10-30.

Pass: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8a5)
Gecko/20041029 Firefox/0.9.1+

Fail: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8a5)
Gecko/20041030 Firefox/0.9.1+

Comment 5

[Jesse Ruderman]

Confirmed using Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.9a1)
Gecko/20051006 Firefox/1.6a1

Comment 6

[Jesse Ruderman]

Attachment: testcase without tables

Comment 7

[Jesse Ruderman]

With the new testcase, trunk 2004-10-29 and Firefox 1.0.7 fail too.  The
regression window in comment 4 might not be meaningful for figuring out what
causes the bug.

Comment 8

[Hugh Allen]

Confirming on MacOS X (using Firefox 1.0.7) and changing hardware/OS to All.

Comment 9

[Hugh Allen]

Attachment: testcase with link as well as button

Found it occurs with links as well as buttons.

Comment 10

[Adam Guthrie]

*** Bug 313167 has been marked as a duplicate of this bug. ***

Comment 11

[Peter van der Woude [:Peter6]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20061208 Minefield/3.0a1 ID:2006120812 [cairo]

Seems fixed after reflow branch landing

Comment 12

[Jesse Ruderman]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20061208 Minefield/3.0a1

Yep, seems fixed by reflow branch.  All the testcases demonstrated the bug in a  2006-12-06 nightly, and they all seem to work correctly in a 2006-12-08 nightly.