271387 - Table cell children have wrongly computed percentage heights

Status: RESOLVED FIXED

(Core :: Layout: Tables, defect)

Description

[Doug Wright]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.7.5) Gecko/20041108 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.7.5) Gecko/20041108 Firefox/1.0

See upcoming testcase.

table>tr>td>img

The <td> has no specified height and the <img> has a specified height of 100%.

In my reading of CSS2.1, the <img> should have a computed height of auto, and
not the height of the <td>.

Min-height works as expected, and is included as a comparison.

Gecko rendering is the same as IE-quirks. IE6 in standards mode displays the
testcase as intended.

Surely Gecko-standards should get this right as well? :-)

Reproducible: Always
Steps to Reproduce:
1.Load testcase (upcoming)
2.Compare to CSS2.1 rules on percentage heights of height:auto parents.

Actual Results:  
The <img> has the wrong height. IE6 gets it right.

Expected Results:  
Displayed height:100% the same as min-height:100%

I've tested this in Mozilla 1.8a5 as well.

Comment 1

[Doug Wright]

Attachment: testcase

Comment 2

[Boris Zbarsky [:bzbarsky]]

I bet the third cell doesn't claim to have auto height, since its height is
being forced by the first cell in the row...

Comment 3

[Bernd]

looks like a valid bug in standards rendering

Comment 4

[Doug Wright]

Testcase now works fine - the bug got silently fixed in the last 11 months.

Comment 5

[Boris Zbarsky [:bzbarsky]]

Fixed by the patch for bug 305975, in fact.