Bug 127196

Summary: Scrolling broken from div on same page as element with -webkit-animation
Product: WebKit Reporter: misha.ponizil
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, simon.fraser
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Mac   
OS: OS X 10.8   
URL: https://gist.github.com/mponizil/8483445
Attachments:
Description Flags
Visual while scrolling the page
none
Test none

misha.ponizil
Reported 2014-01-17 15:31:39 PST
Created attachment 221498 [details] Visual while scrolling the page The following test case can describe the bug most accurately: https://gist.github.com/mponizil/8483445 Notes: (1) Body is scrollable (2) Document includes an element that makes use of a -webkit-animation (3) Top-level div has z-index defined (accompanied by some position declaration) (4) Next-level div is position: fixed (5) Next-level div provides scrolling with overflow-y: auto (6) Children of scrolling div include position: relative The bug goes away if any of the elements descending from the top-level div have -webkit-transform:translate3d(0,0,0) Thanks!
Attachments
Visual while scrolling the page (13.15 KB, image/png)
2014-01-17 15:31 PST, misha.ponizil 		no flags
Details
Test (1.56 KB, text/html)
2014-02-12 12:10 PST, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
misha.ponizil
Comment 1 2014-01-17 15:34:53 PST
Also, when -webkit-transform:translate3d(0,0,0) is added to the top-level div (parent of position: fixed), the position: fixed declaration no longer fixes position relative to the browser window.
Brent Fulgham
Comment 2 2014-02-12 11:25:52 PST
I can't seem to replicate this using your test case and the nightly r163899 on Mavericks. Can you confirm which version of Safari you encountered this?
Simon Fraser (smfr)
Comment 3 2014-02-12 12:10:40 PST
Created attachment 223992 [details] Test
Simon Fraser (smfr)
Comment 4 2014-02-12 12:11:03 PST
I can't reproduce either.
misha.ponizil
Comment 5 2014-02-12 12:22:29 PST
Apologies, I should have tested with the nightly build. I've encountered it using Safari 6.0.5 on OSX 10.8.5. Confirming that it works with nightly Safari, thanks!
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