Bug 87674

Summary: REGRESSION (r109851): Fixed object jitters while scrolling when it overlaps a plug-in
Product: WebKit Reporter: mitz
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: enne, simon.fraser
Priority: P1 Keywords: InRadar, Regression
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
URL: http://blog.sfgate.com/thebigevent/2012/05/28/and-now-some-love-for-sutro-tower/

Description mitz 2012-05-28 12:29:39 PDT
<rdar://problem/11545295>

* STEPS TO REPRODUCE
0. Install and enable the Flash Player plug-in
1. Navigate to the URL
2. Scroll down

* RESULTS
While scrolling, as soon as the fixed banner at the bottom overlaps one of the Flash ads, it begins to jitter as it repeatedly scrolls along with the page, then snaps back to the bottom.

This was caused by <http://trac.webkit.org/r109851>, the fix for bug 50192.
Comment 1 Simon Fraser (smfr) 2012-05-28 21:46:36 PDT
I wonder if the patch in https://bugs.webkit.org/show_bug.cgi?id=64201 fixes this?
Comment 2 mitz 2012-05-28 21:53:08 PDT
(In reply to comment #1)
> I wonder if the patch in https://bugs.webkit.org/show_bug.cgi?id=64201 fixes this?

It does not.