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Issue 882680 link

Starred by 2 users
Status: Available
Owner: ----
Cc:
bokan@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug

Blocking:
issue 903524



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Scrollbars are rendered outside of the container

Reported by denys.mi...@gmail.com, Sep 11 
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Example URL:
http://jsbin.com/keliciniba/1/edit?html,css,output

Steps to reproduce the problem:
1. Open the given url
2. Try to scroll the yellow box

What is the expected behavior?
Scrollbar is rendered inside the box

What went wrong?
Scrollbar is rendered outside of the box

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 68.0.3440.106  Channel: n/a
OS Version: OS X 10.13.6
Flash Version:
scrollbar.png
97.7 KB View Download

Comment 1 by krajshree@chromium.org, Sep 11

Labels: Needs-Triage-M68

Comment 2 by meh...@chromium.org, Sep 11

Components: -Blink Blink>Scroll

Comment 3 by bokan@chromium.org, Sep 13

Cc: bokan@chromium.org
Components: Blink>Compositing
Status: Untriaged (was: Unconfirmed)
Looks like an issue with scrollbar placement in relative positioning in compositing (I couldn't repro on a non retina screen).

Comment 4 by schenney@chromium.org, Sep 13

Labels: -Pri-2 Needs-Bisect Pri-1

Comment 5 by viswa.karala@chromium.org, Sep 14

Labels: -Needs-Bisect Triaged-ET Target-71 M-71 FoundIn-71
Able to reproduce the issue on chrome reported version# 68.0.3440.106 and on latest chrome# 71.0.3551.0 using MacBook Pro 10.13.3 with the URL provided in comment# 0. As this issue is seen from M-60(60.0.3090.0), hence considering this issue as Non-Regression.
Note: Issue is not seen on Linux and Windows an specific to Mac retina screen.

Thanks!

Comment 6 by schenney@chromium.org, Sep 14

Labels: -Pri-1 Pri-2
Status: Available (was: Untriaged)
This is yet another bug that manifests only when the system scrollbar setting is not "Always On". There are at least 2 other bugs that depend on this setting related to stacking order.

So the error is in the Mac scrollbar painting/compositing code.

Comment 7 by bokan@chromium.org, Nov 15

Blocking: 903524
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