Bug 252536 - REGRESSION(257538@main): CSS opacity doesn't work on dialog::backdrop
Summary: REGRESSION(257538@main): CSS opacity doesn't work on dialog::backdrop
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: WebKit Nightly Build
Hardware: iPhone / iPad iOS 16
: P2 Normal
Assignee: Tim Nguyen (:ntim)
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2023-02-18 12:08 PST by Martin
Modified: 2023-02-20 12:31 PST (History)
6 users (show)

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Description Martin 2023-02-18 12:08:33 PST 
Since iOS 16.4 Beta 1, using the `opacity` CSS attribute together with a `background` on `dialog::backdrop` no longer works. Instead, there is always no transparency.

See this demo: https://jsfiddle.net/marto55555/yktr52hw/

Expected behavior: When the dialog is open, the button in the background should be slightly visible.
Comment 1 Radar WebKit Bug Importer 2023-02-18 15:31:50 PST 
<rdar://problem/105636947>
Comment 2 Tim Nguyen (:ntim) 2023-02-19 13:58:49 PST 
Pull request: https://github.com/WebKit/WebKit/pull/10352
Comment 3 Tim Nguyen (:ntim) 2023-02-19 14:01:00 PST 
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/38587
Comment 4 EWS 2023-02-20 12:31:49 PST 
Committed 260556@main (903fc90f8a6a): <https://commits.webkit.org/260556@main>

Reviewed commits have been landed. Closing PR #10352 and removing active labels.