159556 - iframes cause black box further down the page

Status: VERIFIED DUPLICATE of bug 132448

(Core :: Layout, defect)

Description

[peter_c60]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529
BuildID:    2002052918

If you view any page longer than 65536 pixels which contains an iframe, then a
black box appears the size of the iframe every 65536 pixels (e.g. 65536, 131072
etc.). Example is this Slashdot page which displays a black box the size of the
ad (if it is an iframe, you may need to reload a few times) after 65536 pixels.

Reproducible: Always
Steps to Reproduce:
1. View a page containing an iframe longer than 65536 pixels.
2. Scroll down 65536 pixels (or any multiple of 65536). This is done easily by
entering the following in the address bar:

javascript:void(document.body.scrollTop = 65536*x)

where x=1, 2, etc.

Actual Results:  A black box is displayed the same dimensions as the iframe.

Expected Results:  There should not have been a black box.

This bug can be reproduced every time with a page containing <iframe width=200
height=200></iframe> at the beginning and several <br>'s afterwards. I will
attach such a page.

Comment 1

[peter_c60]

Attachment: test case

Comment 2

[R.K.Aa.]

seeing this with a current linux cvs. But i've seen what i believe is this bug
for so long it might be a duplicate..

Comment 3

[Wesha]

WFM 2002072608/win2000 => linux specific problem.

Comment 4

[Andrew Schultz]

dupe of "display corrupted when scrolling" which should probably have a better
summary...

*** This bug has been marked as a duplicate of 132448 ***

Comment 5

[Moied]

verified dup