Bug 197660 - A sticky cell inside a sticky table twitches on scroll
Summary: A sticky cell inside a sticky table twitches on scroll
Alias: None
Product: WebKit
Classification: Unclassified
Component: Scrolling (show other bugs)
Version: Safari 12
Hardware: iPhone / iPad iOS 12
: P2 Normal
Assignee: Nobody
URL: https://kw8rl1pyn7.codesandbox.io/
Keywords: InRadar
Depends on:
Reported: 2019-05-07 08:43 PDT by Nikita
Modified: 2021-11-09 09:31 PST (History)
5 users (show)

See Also:

a screencast (1.92 MB, video/quicktime)
2019-05-07 08:43 PDT, Nikita
no flags Details
a test page (2.20 KB, text/html)
2019-05-07 08:44 PDT, Nikita
no flags Details

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Description Nikita 2019-05-07 08:43:49 PDT
Created attachment 369286 [details]
a screencast

Example URL:

Steps to reproduce the problem:
1. Open an attached url
2. Scroll a table header horizontally

What is the expected behavior?
A fixed white cell should remain in the same position

What went wrong?
A fixed white cell twitches (see the attached video)
Comment 1 Nikita 2019-05-07 08:44:24 PDT
Created attachment 369287 [details]
a test page
Comment 2 Radar WebKit Bug Importer 2019-05-07 10:09:34 PDT
Comment 3 Martin Robinson 2021-11-09 09:31:00 PST
I am able to reproduce this issue with Safari in the simulator. When running the latest from the WebKit repository though, I cannot reproduce it. I think this might be fixed by one of the recent position:sticky improvements.