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Issue 874100 link

Starred by 2 users
Status: ExternalDependency
Owner: ----
Cc:
eugene...@chromium.org
ios-bugs@chromium.org
ajuma@chromium.org
kkhorimoto@chromium.org
Components:
EstimatedDays: ----
NextAction: 2019-03-04
OS: iOS
Pri: 3
Type: Compat



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CSS transition with CSS transform exhibits unintended jitter

Reported by jonobran...@gmail.com, Aug 14 
Steps to reproduce the problem:
1. Open index.html Page Attached
2.A. Click on "<" or ">" to initiate CSS transition / transform
2.B. Or on Mobile touchmove along the lettered elements to initiate CSS transition / transform

What is the expected behavior?
The expected behavior is a smooth transition of the lettered elements.

What went wrong?
The transition occurs but it is not smooth. See video for jitter reproduction.

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 68.0.3440.106  Channel: stable
OS Version: 11.4.1
Flash Version:
index.html
9.5 KB View Download
AwesomeScreenshot-2018-08-14T16-41-06-813Z.webm
2.9 MB View Download

Comment 1 by sczs@chromium.org, Aug 15

Cc: eugene...@chromium.org
Thanks for filing this, does this happen on Safari?

Comment 2 by eug...@with.in, Aug 15 

I've seen this happening on iOS Safari browsers.  I've created an issue for Webkit here: https://bugs.webkit.org/show_bug.cgi?id=188558

I am not experiencing the jitter on Firefox desktop/mobile browsers.

Comment 3 by eugene...@chromium.org, Aug 15

Components: -Blink>CSS Mobile>WebView>Glue
Labels: -Type-Bug -Pri-2 Pri-3 Type-Compat
Status: ExternalDependency (was: Unconfirmed)
Thank you for filing WebKit bug!

Comment 4 by eugene...@chromium.org, Oct 26

Components: Mobile>iOSWeb

Comment 5 by eugene...@chromium.org, Oct 26

Components: -Mobile>WebView>Glue

Comment 6 by eugene...@chromium.org, Oct 26

Components: -Mobile>iOSWeb Mobile>iOSWeb>WebPlatform

Comment 7 by ajuma@chromium.org, Nov 22

NextAction: 2019-03-04
The WebKit bug notes that this is fixed by the WebAnimations feature flags. We should re-test after those features are enabled on iOS.
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