Bug 215256

Summary:

backdrop-filter restricts child elements with position: fixed;

Product:

WebKit

Reporter:

Vladimir Porotnikov <zerdox.cool4>

Component:

Compositing

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED INVALID

Severity:

Normal

CC:

cn.xiaoshan, dino, mattwoodrow, simon.fraser, webkit-bug-importer, zerdox.cool4

Priority:

Keywords:

InRadar

Version:

WebKit Local Build

Hardware:

All

OS:

All

Attachments:

Description	Flags
check input to remove backdrop-filter. see source code	none

Description Vladimir Porotnikov 2020-08-06 23:00:33 PDT

Created attachment 406154 [details]
check input to remove backdrop-filter. see source code

Elements with position:fixed; can't get out of the parent element that has backdrop-filter;
Reproduced bug attached

Comment 1 Radar WebKit Bug Importer 2020-08-08 17:49:17 PDT

<rdar://problem/66736710>

Comment 2 Matt Woodrow 2023-09-17 20:45:07 PDT

This is the expected behaviour, backdrop-filter creates a containing block for position:fixed descendants.