Bug 214256

Summary: Scroll reset and position change cause flickers on the whole page
Product: WebKit Reporter: jose antonio paredes leon <joseaplwork>
Component: ScrollingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari 13   
Hardware: iPhone / iPad   
OS: iOS 13   
Attachments:
Description Flags
reproducible blinking error none

Description jose antonio paredes leon 2020-07-13 07:56:37 PDT
Created attachment 404145 [details]
reproducible blinking error

A div with long content blinks when you scroll and switching position "fixed/relative" by clicking the card 


What steps will reproduce the problem?
(1) Scroll the page to the end
(2) click on the card
(3) click again on the card

What is the expected result?
The card should be positioned without any blinks when changing CSS position property and changing scroll position

What is the actual result?
The floating card is blinking

Any additional information (anything else which may help us debug the
issue)?
Comment 1 Radar WebKit Bug Importer 2020-07-13 09:32:11 PDT
<rdar://problem/65480967>
Comment 2 Simon Fraser (smfr) 2020-07-13 10:40:40 PDT
I can reproduce.
Comment 3 jose antonio paredes leon 2020-07-14 01:32:01 PDT
hey Simon, thanks for the reply.

What are or should be the next step for this issue?
Comment 4 Simon Fraser (smfr) 2020-07-24 20:34:58 PDT
Next steps are for me to spend some quality time debugging this.