211211 - wrong display behaviour with div having height:100% and overflow:auto

Status: RESOLVED DUPLICATE of bug 210657

(Core :: Layout, defect)

Description

[Thomas Bruederli]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624

Having a div with style="width:100%; height:100%; overflow:auto" in a table with
height="100%". This renders correctly as long as the content of the div is not
longer than the displayed area of the layer.

If the div has an absolute height like 400px then everything works fine. Also
the with of 100% does not seem to be a problem, just the height in %.
This behaviour also occures if we don't use javascipt to replace the div's
content. Just try this example by filling the div with plenty of content in HTML
source. I simply build in javascript to visualize the problem.

Reproducible: Always

Steps to Reproduce:
1. open the page
2. click on "write layer"
3. see the results
Actual Results:  
Instead of only displaying scrollbars on the div, the whole page gets scrollbars
as well as the layer.

Expected Results:  
I expect the layer to show up always the same size (with little or much content)
and display a scrollbar if the content flows over.

Comment 1

[Thomas Bruederli]

Attachment: simple testcase

Comment 2

[Boris Zbarsky [:bzbarsky]]

Attachment: plain-HTML testcase

Comment 3

[Boris Zbarsky [:bzbarsky]]

This has nothing to do with the DOM if it occurs in a static page... over to layout.

Comment 4

[Mats Palmgren (inactive)]

*** This bug has been marked as a duplicate of 210657 ***