Bug 196819 - Misplaced and wrongly clipped position:absolute inside async overflow scroll
Summary: Misplaced and wrongly clipped position:absolute inside async overflow scroll
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Scrolling (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Simon Fraser (smfr)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-04-11 06:56 PDT by Simon Fraser (smfr)
Modified: 2019-04-11 06:57 PDT (History)
2 users (show)

See Also:

Attachments
Testcase (1.12 KB, text/html)
2019-04-11 06:56 PDT, Simon Fraser (smfr) 		no flags Details
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Description Simon Fraser (smfr) 2019-04-11 06:56:20 PDT 
Created attachment 367218 [details]
Testcase

Some configurations of position:absolute/overflow:hidden inside overflow:scroll trigger bad clipping and movement when scrolling.
Comment 1 Simon Fraser (smfr) 2019-04-11 06:56:41 PDT 
Here we need to teach the scrolling tree about ancestor clipping layers.
Comment 2 Simon Fraser (smfr) 2019-04-11 06:57:04 PDT 
This affects agoda.com