Bug 110552

Summary: background-attachment: fixed causes redraw issues when applied to element alongside transform: perspective
Product: WebKit Reporter: Peter Lejeck <peter.lejeck>
Component: New BugsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: jchaffraix, leviw, pdr, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Attachments:
Description Flags
Test Case Reduction
none
Bug Screenshot none

Peter Lejeck
Reported 2013-02-21 21:41:21 PST
Created attachment 189677 [details] Test Case Reduction Redraws for fixed backgrounds don't appear to be triggered automatically when applied to the same DOM node as a 3D CSS transform. Steps to Reproduce: 1) Apply 3D CSS Transform to same node as a fixed-attachment background. (see attached test case for example) 2) Scroll down. 3) Force a redraw (partial or whole). This can be done by (a) selecting text within the bounding box for a partial redraw or (b) resizing the window for a full redraw Actual Results: Visual tearing for partial redraws, and complete repositioning of background for full redraws. Expected Results: Background should behave as background-attachment: fixed, staying in one place while you scroll. Platforms Confirmed: Mac OS 10.8.2, Chrome 24.0.1312.57 Mac OS 10.8.2, WebKit Nightly 537.32+ Windows 8, Chrome 25.0.1364.97 (channel m)
Attachments
Test Case Reduction (1.25 KB, text/html)
2013-02-21 21:41 PST, Peter Lejeck 		no flags
Details
Bug Screenshot (122.30 KB, image/png)
2013-02-21 21:42 PST, Peter Lejeck 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Peter Lejeck
Comment 1 2013-02-21 21:42:27 PST
Created attachment 189678 [details] Bug Screenshot
Radar WebKit Bug Importer
Comment 2 2013-02-22 11:13:30 PST
<rdar://problem/13274831>
Simon Fraser (smfr)
Comment 3 2013-06-15 13:04:16 PDT
*** This bug has been marked as a duplicate of bug 65793 ***
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