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Issue 599782 link

Starred by 1 user

Issue metadata

Status: Fixed
Owner:
(currently inactive on Chromium)
Closed: Apr 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Jumpy/janky scrolling on multiple sites with Chrome 49 when in iframe

Reported by lukeshar...@gmail.com, Apr 1 2016

Issue description

UserAgent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0

Example URL:
many - see description.

Steps to reproduce the problem:
1. Open the attached file and click through each of the sites.
2. Middle-click or right click open in new tab to view each of the sites by itself.
3. Note that scrolling through with the mousewheel in the page in an iframe makes the background look a bit like an earthquake - it doesn't scroll smoothly with smooth scroll enabled!

What is the expected behavior?
It should be completely smooth as in any other browser.

What went wrong?
Apparently Smooth scrolling in Chrome 49 introduces a major performance regression.

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? Yes 48? or 49 with smooth-scrolling turned off in chrome://flags

Does this work in other browsers? Yes 

Chrome version: Version 49.0.2623.110 (64-bit)  Channel: stable
OS Version: 
Flash Version: Shockwave Flash 11.2 r202

Any workaround or ETA on a fix for this issue?
 
iframetest.html
738 bytes View Download
Components: -Blink Blink>Scroll
Cc: skobes@chromium.org ymalik@chromium.org
Labels: Needs-Feedback
I don't see anything particularly wrong with the first two sites on your test page (Avenir and Jova). Can you maybe attach a video?

The third site, I notice that the navigation bar is very jumpy. It looks like the same root cause as in  issue 581875 . Can you verify that it's fixed in chrome beta?
Funny, the first one doesn't always show that iframe glitch so well. The second one always has the "Get your Quote" section at the bottom jumping, where it is not jumpy when in the page by itself. You can intermittently see background jumping in similar manner in the top one, and in the bottom link especially on attached file.
Project Member

Comment 4 by sheriffbot@chromium.org, Apr 2 2016

Labels: -Needs-Feedback Needs-Review
Owner: ymalik@chromium.org
Thank you for providing more feedback. Adding requester "ymalik@chromium.org" for another review and adding "Needs-Review" label for tracking.

For more details visit https://sites.google.com/a/chromium.org/dev/issue-tracking/autotriage - Your friendly Sheriffbot
You are probably not seeing the bug if you're using Chrome beta, it looks fine. :)

Too bad this won't be fixed until the week of April 19th, according to this? https://www.chromium.org/developers/calendar
Status: Fixed (was: Unconfirmed)
That is correct.

Marking this as fixed.
Labels: Hotlist-Input-Dev

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