Bug 219683

Summary:

Setting height: auto on hover causes insane flashes

Product:

WebKit

Reporter:

Antoine Quint <graouts>

Component:

Layout and Rendering

Assignee:

Nobody <webkit-unassigned>

Status:

NEW ---

Severity:

Normal

CC:

ahmad.saleem792, bfulgham, simon.fraser, webkit-bug-importer, zalan

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Test	none

Description Antoine Quint 2020-12-09 07:07:53 PST

Created attachment 415754 [details]
Test

The attached test is simply a <div> and this style:

    div {
        background-color: blue;
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
        width: 100%;
    }

    div:hover {
        height: auto;
    }

When I move the cursor around the page the page flashes blue, as if the <div> stopped painting. This does not occur in either Firefox or Chrome.

Comment 1 Radar WebKit Bug Importer 2020-12-09 07:08:12 PST

<rdar://problem/72135791>

Comment 2 Ahmad Saleem 2023-04-21 05:49:30 PDT

I am able to reproduce this bug in Safari Technology Preview 168 and also WebKit ToT.

Just sharing updated testing results. Thanks!