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Issue 657701 link

Starred by 2 users
Status: WontFix
Owner: ----
Closed: Dec 2016
Cc:
szager@chromium.org
dtseng@chromium.org
dmazz...@chromium.org
nyerramilli@chromium.org
█ tkonch...@chromium.org
dpa...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 2
Type: Bug-Regression
Team-Accessibility



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Regression: Weird flickering of settings page is observed after adding 'ChromeVox' extension.

Reported by rk...@etouch.net, Oct 20 2016 
Chrome Version: 55.0.2883.21 Revision b9eabca6f064bcaa5aa645e4b3eaba90cf47a43c-refs/branch-heads/2883@{#201}(32/64 bit)
OS: Windows (7,8,8.1,10),Linux (14.04 LTS),Mac OS X(10.10.5, 10.11.4)

URL: https://chrome.google.com/webstore/detail/chromevox/kgejglhpjiefppelpmljglcjbhoiplfn/related?hl=en
 
What steps will reproduce the problem?
(1) Launch chrome, navigate to above url and click on 'ADD TO CHROME' button.
(2) Now navigate to chrome?://md-settings page and observe.

Actual: Weird flickering of settings page is observed after adding ChromeVox extension.

Expected: Settings page should not flicker.

This is regression issue, broken in ‘M 55’ and will soon update other info :

Good build:55.0.2874.0  
Bad build: 55.0.2875.0
Actual_Extension.mp4
769 KB View Download
Expected_Extension.mp4
409 KB View Download

Comment 1 by msrchandra@chromium.org, Oct 20 2016

Owner: dpa...@chromium.org
Status: Assigned (was: Unconfirmed)
Using the per-revision bisect providing the bisect results,
Good build: 55.0.2874.0 (Revision: 421409).
Bad build: 55.0.2875.0 (Revision: 421703).

You are probably looking for a change made after 421587 (known good), but no later than 421588 (first known bad).
CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/23f688e8fe28d1b260cedba104bf0783331126d4..113dc343df448872e655b8d1a0dd78116a6f26b6

@dpapad -- Could you please look into the issue, pardon me if it has nothing to do with your changes and if possible please assign it to concern owner.
Thank You.

Comment 2 by tkonch...@chromium.org, Oct 20 2016

Labels: Proj-MaterialDesign-WebUI

Comment 3 by dpa...@chromium.org, Oct 20 2016

Labels: -Pri-1 Pri-2

Comment 4 by michae...@chromium.org, Oct 20 2016

Cc: szager@chromium.org dmazz...@chromium.org
Components: -Platform>Extensions UI>Accessibility
1. I can't repro this on Chrome OS (55.0.2878.0), which seems weird
2. Do we even support ChromeVox without ChromeVox Next enabled (for shadow dom support)?
3. Is this a Settings UI bug, a blink bug or a ChromeVox bug?

Comment 5 by dpa...@chromium.org, Oct 20 2016 

I was able to easily repro on Linux. I don't know if ChromeVox works on MD Settings, because I don't know how to use it, but as far as the flickering is concerned, I was able to fix it just per https://codereview.chromium.org/2435013004, preventing the scrollbars to appear and disappear.

If ChromeVox is not supposed to work on MD Settings, then I agree that there is no need to land the workaround at all.

Comment 6 by dbeam@chromium.org, Oct 24 2016

Cc: dtseng@chromium.org
only use ChromeVox Next for any page that uses Polymer/Shadow DOM.  older ChromeVox doesn't work well with this stuff.

Comment 7 by dpa...@chromium.org, Nov 9 2016

Owner: ----
Status: Available (was: Assigned)
Per #6, it seems that the action item is to try ChromeVox Next on MD Settings and check whether the same issue occurs. Un-assigning myself so that others can pick this up.

Comment 8 by chaok@google.com, Dec 5 2016

Status: wontfix (was: Available)
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