Bug 210822 - iframe with background-attachment: fixed needs to scroll synchronously
Summary: iframe with background-attachment: fixed needs to scroll synchronously
Status: ASSIGNED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Scrolling (show other bugs)
Version: Safari Technology Preview
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2020-04-21 16:13 PDT by Simon Fraser (smfr)
Modified: 2020-04-21 16:18 PDT (History)
2 users (show)

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Description Simon Fraser (smfr) 2020-04-21 16:13:03 PDT 
An iframe whose content has background-attachment: fixed needs to fall into the synchronous scrolling path.
Comment 1 Radar WebKit Bug Importer 2020-04-21 16:13:17 PDT 
<rdar://problem/62137075>
Comment 2 Simon Fraser (smfr) 2020-04-21 16:18:09 PDT 
This is an ordering dependency between calling scrollingCoordinator->frameViewFixedObjectsDidChange() and creating the subframe's scrolling node.