Bug 170824

Summary:	subpixelAntialiasedLayerText breaks CSS opacity transition
Product:	WebKit	Reporter:	Jer Noble <jer.noble>
Component:	Layout and Rendering	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	Safari Technology Preview
Hardware:	Unspecified
OS:	Unspecified
URL:	https://jernoble.github.io/shoulditweet/

Jer Noble

Reported 2017-04-13 13:07:55 PDT

Enabling subpixelAntialiasedLayerText breaks a CSS opacity transition.

Attachments
Add attachment proposed patch, testcase, etc.

Jer Noble

Comment 1 2017-04-13 13:08:44 PDT

Load the test case URL <https://jernoble.github.io/shoulditweet/>, then click and hold on the middle of the Magic 8 ball. The interior triangle should smoothly fade between opacity:1 and opacity:0. Instead the animation is clamped at 0 for the duration of the transition.

Radar WebKit Bug Importer

Comment 2 2017-04-13 13:09:28 PDT

<rdar://problem/31612535>

Simon Fraser (smfr)

Comment 3 2017-10-25 16:10:18 PDT

The fix for this shipped in macOS High Sierra.

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