Bug 216294

Summary: REGRESSION (Async overflow scroll): Truncated scrollbars in facebook chat
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: ScrollingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: changseok, esprehn+autocc, ews-watchlist, fred.wang, glenn, koivisto, kondapallykalyan, pdr, simon.fraser, thorton, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch
none
Patch
koivisto: review+
Patch
ews-feeder: commit-queue-
Patch none

Description Simon Fraser (smfr) 2020-09-08 17:02:06 PDT 
Content inside a non-stacking context overflow:scroll can overlap overlay scrollbars.
Comment 1 Simon Fraser (smfr) 2020-09-08 17:31:42 PDT 
Created attachment 408294 [details]
Patch
Comment 2 Simon Fraser (smfr) 2020-09-08 17:32:17 PDT 
rdar://problem/61918702
Comment 3 Simon Fraser (smfr) 2020-09-08 20:25:59 PDT 
Created attachment 408307 [details]
Patch
Comment 4 Simon Fraser (smfr) 2020-09-09 12:58:33 PDT 
Created attachment 408359 [details]
Patch
Comment 5 Simon Fraser (smfr) 2020-09-09 21:00:54 PDT 
Created attachment 408409 [details]
Patch
Comment 6 EWS 2020-09-10 08:22:10 PDT 
Committed r266825: <https://trac.webkit.org/changeset/266825>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 408409 [details].
Comment 7 Simon Fraser (smfr) 2020-09-10 12:24:22 PDT 
Logging fix in https://trac.webkit.org/changeset/266884/webkit