This bug was originally reported in: http://code.google.com/p/chromium/issues/detail?id=121102 Composited layers seem to clip out shadow region corresponding to a -webkit-box-shadow property. Steps to reproduce: (WebKit in 10.7 with accelerated canvas or Chrome) 1. Open http://www.tsetmc.com/Loader.aspx?ParTree=151311&i=23441366113375722 2. Click 's' to open the popup div with the box shadow 3. Resize the main window until the popup overlaps the graph at the top left At that point, the popup gets promoted to a composited layer and loses it shadow (and a chunk of its border). The composited layer borders reveal that the layer created is really too small. An alternative way to trigger the bug on the same page is to simply add a -webkit-transform: translateZ(0) on the popup div's content.
When did this regress? r111456?
(In reply to comment #1) > When did this regress? r111456? I'm not sure it's a regression, and if it is, it's probably not very recent. I see the same behavior in (official) Safari 5.1.3 (7534.53.10) .
*** Bug 83381 has been marked as a duplicate of this bug. ***
This needs to be looked soon.
<rdar://problem/11204762>
Created attachment 138056 [details] Reduced test case Here's a pretty simple reduction. Edit the marked point in the file to toggle the correct and incorrect results.
We're probably using the wrong clip rect for position:fixed things. Does it only repro with position:fixed?
Created attachment 138107 [details] Updated reduction
I think this is a dup of bug 63331
*** This bug has been marked as a duplicate of bug 63331 ***