Bug 257100

Summary:	[image-set] Pick first choice when identical resolutions are found
Product:	WebKit	Reporter:	Tim Nguyen (:ntim) <ntim>
Component:	CSS	Assignee:	Ryan Reno <rreno>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	karlcow, oliverwilliams345, webkit-bug-importer
Priority:	P2	Keywords:	BrowserCompat, InRadar, WPTImpact
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
URL:	https://wpt.fyi/results/css/css-images/image-set/image-set-type-first-match-rendering.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2023-webcompat

Description Tim Nguyen (:ntim) 2023-05-20 22:38:50 PDT

https://drafts.csswg.org/css-images-4/#image-set-notation

> Second, remove any <image-set-option>s from the list that have the same <resolution> as a previous option in the list.

This implies we need to pick first choice when identical resolutions are found.

WPT: https://wpt.fyi/results/css/css-images/image-set/image-set-type-first-match-rendering.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2023-webcompat

Comment 1 Radar WebKit Bug Importer 2023-05-20 22:39:11 PDT

<rdar://problem/109619779>

Comment 2 Ryan Reno 2023-05-23 22:55:14 PDT

*** Bug 257193 has been marked as a duplicate of this bug. ***

Comment 3 Ryan Reno 2023-05-23 23:27:33 PDT

Pull request: https://github.com/WebKit/WebKit/pull/14285

Comment 4 EWS 2023-05-24 11:13:27 PDT

Committed 264481@main (56e5d7cb43e7): <https://commits.webkit.org/264481@main>

Reviewed commits have been landed. Closing PR #14285 and removing active labels.