Bug 42498

Summary: transform3d causes incorrect compositing of border with background
Product: WebKit Reporter: nick
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal    
Priority: P3    
Version: 528+ (Nightly build)   
Hardware: Mac (Intel)   
OS: OS X 10.6   
Attachments:
Description Flags
Minimal HTML & CSS demonstrating problem none

nick
Reported 2010-07-17 05:23:37 PDT
Created attachment 61882 [details] Minimal HTML & CSS demonstrating problem if an element has an border colour with partial alpha, and overflow hidden e.g: border: 10px solid rgba(255,255,255,0.5); overflow: hidden; and you apply a translate3d value (even if it's zero), e.g: -webkit-transform:translate3d(0,0,0); Then the compositing of the border goes wrong. It appears to be an issue with how it's cropped.
Attachments
Minimal HTML & CSS demonstrating problem (1.11 KB, text/html)
2010-07-17 05:23 PDT, nick 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
nick
Comment 1 2010-07-17 05:26:58 PDT
Affects Safari 4 and iPhone iOS4 Does not appear to happen on iPhone OS 3.1.3
nick
Comment 2 2010-07-30 15:32:44 PDT
Fixed in latest release
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