Bug 209737

Summary: Repaint issue in fixed header inside iframe
Product: WebKit Reporter: Frédéric Wang (:fredw) <fred.wang>
Component: ScrollingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Major CC: ap, cathiechen, dvoytenko, fred.wang, jridgewell, simon.fraser, webkit-bug-importer, webkit-unassigned
Priority: P2 Keywords: InRadar
Version: Safari 13   
Hardware: iPhone / iPad   
OS: iOS 13   
Bug Depends on: 209486    
Bug Blocks:    

Frédéric Wang (:fredw)
Reported 2020-03-30 07:01:02 PDT
+++ This bug was initially created as a clone of Bug #209486 +++ Repro page: https://output.jsbin.com/wakuqok/quiet It's a simple page that overflows on x and y. When scrolled, it shows a very visible flicker. See screen recording: https://drive.google.com/file/d/1g7IQE25VOS2B5Bhg760_Qx7k0Bnrrqbp/view?usp=sharing ---- Note: Justin said "I had paint flashing enabled when recording, if you're referring to the red flashes."
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