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Issue 808832 link

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Issue metadata

Status: Duplicate
Merged: issue 807324
Owner:
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 1
Type: Bug-Regression



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300 x 620 px PNG image rendered incompletely

Reported by 13hu...@gmail.com, Feb 3 2018

Issue description

UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/64.0.3282.119 Chrome/64.0.3282.119 Safari/537.36

Example URL:
https://upload.wikimedia.org/wikipedia/commons/1/1f/Doxygen_ouput.png

Steps to reproduce the problem:
1. https://upload.wikimedia.org/wikipedia/commons/1/1f/Doxygen_ouput.png
From https://en.wikipedia.org/wiki/Doxygen#/media/File:Doxygen_ouput.png

What is the expected behavior?
Image loads completely.

What went wrong?
Only very top part of image is loaded, rest is checkered (see screenshot).

Does it occur on multiple sites: N/A

Is it a problem with a plugin? N/A 

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 64.0.3282.119  Channel: stable
OS Version: 
Flash Version: 

Renders as expected in Firefox
 
Screenshot_20180203_163340.png
12.9 KB View Download
Labels: Needs-Triage-M64
Cc: susanjun...@techmahindra.com
Components: Blink>Paint
Labels: -Pri-2 -Type-Compat hasbisect-per-revision ReleaseBlock-Stable Triaged-ET RegressedIn-64 M-64 Target-65 FoundIn-64 FoundIn-65 Target-64 OS-Mac OS-Windows Pri-1 Type-Bug-Regression
Owner: scroggo@chromium.org
Status: Assigned (was: Unconfirmed)
Able to reproduce the issue on Windows 10. Mac OS 10.12.6 and Ubuntu 14.04 on the latest Stable 64.0.3282.140 and Dev 65.0.3325.31 by following the steps mentioned in the original comment.
Not able to repro this issue on the latest Canary 66.0.3340.0. Hence below is the reverse bisect information.

Reverse Bisect Information:
============================
Good build: 64.0.3245.0 (Revision - 510270 )
Bad Build : 64.0.3246.0 (Revision - 510623 )

By executing the per-revision bisect script. below is the Changelog URL.

Change Log URL:
================
https://chromium.googlesource.com/chromium/src/+log/2767edcdb266aea34a5fb4354a36d84858244fad..f82653a473f8de5fc86d0f2ecc75f6237e61946b

From the above change log suspecting the below change
Review-Url: https://chromium-review.googlesource.com/704209

scroggo@@ - Can you please check if the this issue is caused with respect to your change, else help us in assigning to the right owner.

Adding ReleaseBlock-Stable as this is a recent regression. Please feel to remove the same if it is not applicable.

Thanks..
Yes, this is very likely due to the update to 1.6.34, which has been reverted at ToT. This is supported by the fact that the bug is no longer reproducible in 66, but I'll double check. (The revert is due to  issue 807324 , which tracks a similar problem with a different png.)
Components: -Blink>Paint Internals>Images>Codecs
Mergedinto: 807324
Status: Duplicate (was: Assigned)
Yes, this is the same bug, fixed by the revert to the older version.

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