Bug 240904

Summary:

CSS filter interpolation incorrect when a function is missing

Product:

WebKit

Reporter:

Martin <martiminchev>

Component:

CSS

Assignee:

Nobody <webkit-unassigned>

Status:

NEW ---

Severity:

Normal

CC:

graouts, mmaxfield, sabouhallawa, simon.fraser, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

Safari 15

Hardware:

All

OS:

All

Attachments:

Description	Flags
bug demo	none

Description Martin 2022-05-25 03:34:24 PDT

Created attachment 459751 [details]
bug demo

According to https://developer.mozilla.org/en-US/docs/Web/CSS/filter#interpolation - "missing equivalent filter functions from the longer list are added to the end of the shorter list using their initial values."

In the attached demo, however, Webkit does not play the transition and directly jumps to the final state when hovering.

Firefox and Chrome correctly fill in the missing filter function with its initial value.

Comment 1 Radar WebKit Bug Importer 2022-06-01 03:35:12 PDT

<rdar://problem/94212054>