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Issue metadata

Status: Available
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug



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Scrolling an element with an SVG clip-path causes a repaint on every frame

Project Member Reported by brentons@google.com, May 12 2016

Issue description

Steps to reproduce the problem:
Reduction: http://codepen.io/appsforartists/full/EKMeWY

1. Create a scrolling element and place it inside a clipped/masked element
2. Scroll
3. 

What is the expected behavior?
Jank-free, buttery-smooth, GPU-accelerated scrolling

What went wrong?
It's janktastic:  repaints on every frame.

Did this work before? N/A 

Chrome version: 50.0.2661.89  Channel: n/a
OS Version: 6.0.1
Flash Version: Shockwave Flash 21.0 r0
 

Comment 1 by f...@opera.com, May 12 2016

Components: Blink>SVG Blink>Paint
Labels: -OS-Android
Status: Available (was: Unconfirmed)
If  issue 607388  gets fixed, it doesn't feel entirely impossible that this case could be handled as well.
Project Member

Comment 2 by sheriffbot@chromium.org, Jun 2 2016

Labels: Hotlist-Google
Project Member

Comment 3 by sheriffbot@chromium.org, Jun 2 2017

Labels: Hotlist-Recharge-Cold
Status: Untriaged (was: Available)
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available. If you change it back, also remove the "Hotlist-Recharge-Cold" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 4 by f...@opera.com, Jun 2 2017

Status: Available (was: Untriaged)
Cc: ikilpatrick@chromium.org
Labels: -Hotlist-Recharge-Cold BugSource-Chromium PaintTeamTriaged-20170602

Comment 7 Deleted

Comment 8 Deleted

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Comment 9 by sheriffbot@chromium.org, Jun 7 2018

Labels: Hotlist-Recharge-Cold
Status: Untriaged (was: Available)
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Status: Available (was: Untriaged)
I was investigating another issue that causes the scroll to stop working randomly, and by removing the clip-path of a deeply nested element, my problem disappeared. I'm not able to make an example that triggers that issue all the time, and I can't share the real code as it's not released yet. But I found that when adding a clip-path the scroller disappears. 
https://codepen.io/CarlRosell/full/dgNKjN

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