544150 - table row border rendered incorrectly with :hover css selector

Status: UNCONFIRMED

(Core :: Layout: Tables, defect)

Description

[Michael]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6

Firefox draws left and right borders on table rows when hiding and showing following rows, using CSS :hover selectors.

Reproducible: Always

Steps to Reproduce:
1. Visit the URL above - http://lettuce.tapor.uvic.ca/~mjoyce/schedule.html
2. Mouse over into the row containing "colloquium"
3a. Exit the row by mousing down, out of the bottom of the table - a border appears on the colloquium row.
3b. Mouse into the row containing "colloquium" again, but this time exit by mousing to the left or right - no border appears.
Actual Results:  
The border on the row containing the word "colloquium" appears and disappears depending on how the mouse left the table row.

Expected Results:  
The left and right borders on the row shouldn't be displayed. At the very least, it shouldn't matter how the mouse left the table.

Tested on FF 3.6/Mac OS X 10.6, FF 3.5/Ubuntu 9.04, and FF 3.5/Win XP. All tested browsers showed the same behavior.

Comment 1

[Michael]

Attachment: Test case for the bug, identical to the URL reported.

Comment 2

[Ria Klaassen (not reading all bugmail)]

Confirmed with latest trunk on windows Vista

Comment 3

[(mostly gone) XtC4UaLL [:xtc4uall]]

FWIW, Opera 10.5 & WebKit 532.9 don't show borders on the colloquium row.

Comment 4

[Michael]

The situation is worse in 5.0.1/Mac OS X. The left/right borders show and hide on both rows when they should not.

Comment 5

[Trevor Wistaff]

This still occurs in Firefox 18.0.1 on Mac OSX 10.7.5