321111 - Display glitch with hover menu over iframe (rounding?)

Status: RESOLVED WORKSFORME

(Core :: Web Painting, defect)

Description

[John Wilcock]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.8) Gecko/20051111 Firefox/1.5
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.8) Gecko/20051111 Firefox/1.5

Offset pixels when hover menus are displayed over a google-generated ad (i.e. javascript-generated image

Reproducible: Always

Steps to Reproduce:
1.Navigate to www.snoweye.com
2.Hover over the menu at the left, opposite the google adsense ad


Actual Results:  
Menu items that overlap the edge of the ad show a glitch

Expected Results:  
Menu items that overlap the edge of the ad should be displayed properly

This displays fine with Firefox 1.0.7.

Seems to be Windows-specific (at least it is fine with 1.5 on Linux).

Also reproducible with latest trunk (2005122106).

Comment 1

[John Wilcock]

Attachment: Screenshot showing glitch

Notice how "West" is OK (not over the ad) but the lines below show offset pixels

Comment 2

[John Wilcock]

Changing from Firefox to Core as the same glitch shows in Seamonkey 1.0 beta
(Gecko/20051219 SeaMonkey/1.0b)

(hope that's the right thing to do for what must be a Gecko bug)

Comment 3

[John Wilcock]

Attachment: Testcase

Comment 4

[John Wilcock]

Attachment: Screenshot showing results of testcase with FFx 1.5.0.1 rc1 (2006011904)

Comment 5

[John Wilcock]

Boiled this down to a testcase. Turns out it's nothing to do with google's ad code, any iframe will do (changed bug subject accordingly).

Testcase doesn't work in latest trunk (2006012609). 

Comment 6

[Martijn Wargers (dead)]

I'm seeing also a glitch with Mozilla1.7.12, although a different one.
This might be a duplicate of some other bug.

Comment 7

[Tobias Ebnöther]

This testcase works on ff 1.5.0.4 Linux but when hovering an image instead of text over the iFrame the glitch still exists.

Comment 8

[j.j.]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a7pre) Gecko/2007072605 Minefield/3.0a7pre

Testcase WFM

Comment 9

[Adam Guthrie]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a7pre) Gecko/2007072605 Minefield/3.0a7pre

Testcase WORKSFORME, too. Changing in-testsuite+ back to in-testsuite? since this isn't actually in the testsuite.

->WORKSFORME