Regression:unwanted Black line is displaying in customise font page. |
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Issue descriptionChrome Version: 59.0.3071.15 Dev OS: Ubuntu 14.04,Windows What steps will reproduce the problem? (1)Launch chrome and navigate to the chrome://md-settings (2)Increase the font size to very large and page zoom to 175% (3)Click on customise font and observe Expected result:Unwanted black line should not be displayed in customised font page. Actual Result:Unwanted black line is displayed in customised fonts page. This is regression issue broken in M-58 Manual Bisect Info: =================== Good Build:58.0.3005.2 Bad Build:58.0.3006.0
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Apr 20 2017
Using the per-revision bisect providing the bisect results, Good build:58.0.3005.2 (Revision:448507). Bad build:58.0.3006.0 (Revision:448862). You are probably looking for a change made after 448853 (known good), but no later than 448854 (first known bad). CHANGE-LOG URL: --------------- https://chromium.googlesource.com/chromium/src/+log/f1fbe08e33f617ef153c305b2af58e2f130767b2..fc09866f18c741c81b93c9314829a3046c724128 From the CL above, assigning the issue to the concern owner @scottchen: 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. Review-Url: https://codereview.chromium.org/2675183005 Note :Able to reproduce the issue in Win 10.0,Ubuntu 14.04 & not in Mac 10.12.3 and Able to reproduce in latest Canary #60.0.3075.0
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Apr 20 2017
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Apr 20 2017
Very unlikely related to my CL. Unable to repro on Ubuntu 14.04 on chrome version #60.0.3077.0, was able to repro within the range of your bisect though. re-assigning to dschuyler@ since he worked with sliders last.
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Apr 24 2017
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May 3 2017
I was able to reproduce this. It looks like a rendering artifact that depends on the zoom level. It's semi-reproducible when refreshing the page (sometimes it doesn't happen).
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May 3 2017
Since this is not consistent and depends on the zoom level, I'm guessing it's likely to be a rendering / compositing issue.
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May 8 2017
This is not a regression. The bug has almost certainly existed for a while and the changes to the page revealed it. It also is fixed according to comment #4. We won't merge a change for an issue like this. I'll try to repro when I get back to a Windows machine, hence assigning to me. It doesn't repro on Mac as far as I can tell.
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May 8 2017
Also, in the current version the portion of the slider to the left of the knob is painted a different color, whereas in the example above it is not. Was there a change to the slider shadow dom that would explain the change in behavior? Is what I am seeing now in DevTools the same as what was there in the version with the bug?
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May 18 2017
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Sep 27
The page has gone away, and the issue does not manifest on the current chrome://settings page. |
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Comment 1 by brajkumar@chromium.org
, Apr 20 2017