Bug 10898

Summary:

REGRESSION: Some bit garbage left behind on cnn story page after banner ad appears

Product:

WebKit

Reporter:

John Sullivan <sullivan>

Component:

Layout and Rendering

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

mitz

Priority:

Keywords:

HasReduction, InRadar, Regression

Version:

420+

Hardware:

Mac

OS:

OS X 10.4

URL:

http://www.cnn.com

Bug Depends on:

12079, 12123

Bug Blocks:

Attachments:

Description	Flags
Screenshot showing problem	none
Reduction - strict mode	none
Reduction - quirks mode	none

John Sullivan

Reported 2006-09-17 07:02:09 PDT

To reproduce: 1. visit http://www.cnn.com 2. click one of the story titles in the "LATEST NEWS" section Watch the page as it loads. First the entire contents of the page load, and look correct. A moment later, a banner ad appears at the top of the page, and the rest of the page shifts down. When this happens, a few pixels from the left side of the first character in the headline of the story are left behind in their previous position, about an inch above their new position. The first char in the headline is now slightly clipped on the left. This did not occur on shipping Safari.

Attachments
Screenshot showing problem (5.39 KB, image/png) 2006-09-17 07:03 PDT, John Sullivan	no flags	Details
Reduction - strict mode (469 bytes, text/html) 2006-09-18 12:34 PDT, mitz	no flags	Details
Reduction - quirks mode (453 bytes, text/html) 2006-09-18 12:35 PDT, mitz	no flags	Details
View All Add attachment proposed patch, testcase, etc.

John Sullivan

Comment 1 2006-09-17 07:03:38 PDT

Created attachment 10604 [details] Screenshot showing problem In the attached screenshot, the "S" from "Shoppers" is slightly clipped on the left, and the missing bits are to the left of the blue background behind "Home World U.S.".

mitz

Comment 2 2006-09-18 12:34:21 PDT

Created attachment 10631 [details] Reduction - strict mode

mitz

Comment 3 2006-09-18 12:35:39 PDT

Created attachment 10632 [details] Reduction - quirks mode This test case is broken in shipping Safari as well as in TOT

John Sullivan

Comment 4 2006-09-18 12:40:16 PDT

Maybe the test case is reflecting a different issue then? The bit garbage problem I see does not occur on shipping Safari.

mitz

Comment 5 2006-09-18 12:56:03 PDT

Comment on attachment 10631 [details] Reduction - strict mode (In reply to comment #4) > Maybe the test case is reflecting a different issue then? The bit garbage > problem I see does not occur on shipping Safari. > The "strict mode" flavor of the bug *is* a regression. I think that explains the regression on cnn.com.

mitz

Comment 6 2006-09-28 10:09:26 PDT

*** Bug 11045 has been marked as a duplicate of this bug. ***

mitz

Comment 7 2006-09-28 10:12:41 PDT

Also failing manual-tests/left-overflow-repaint.html because of this. As noted in bug 11045, the problem is that tables' repaint rects don't account for cells' overflow.

Stephanie Lewis

Comment 8 2006-11-06 21:41:55 PST

radar 4823134

mitz

Comment 9 2007-02-12 16:24:48 PST

Fixed by fixing bug 12079 and bug 12123.

mitz

Comment 10 2007-02-17 22:52:05 PST

Reopening because r19588 was rolled out.

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