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Issue metadata

Status: Unconfirmed
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Compat



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Canvas software rendering broken for Granblue Fantasy in Dev and Canary channels

Reported by k...@luminance.org, Yesterday (29 hours ago)

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

Example URL:
http://game.granbluefantasy.jp/ in battles

Steps to reproduce the problem:
1. Disable hardware acceleration
2. Start or continue a battle in granblue fantasy

What is the expected behavior?
Game sprites and assets should render

What went wrong?
Only the background and UI elements render

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? Yes Release channel (v71)

Does this work in other browsers? Yes

Chrome version: Version 73.0.3679.0 (Official Build) canary (64-bit)  Channel: canary
OS Version: 10.0
Flash Version: 

Works if hardware acceleration is active in canary channel. Also broken in Dev channel, though I only tested in canary. This was reported to me by a user of my extension, but happens without the extension enabled. No errors appear in the developer console, the canvas rendering just doesn't happen. Other uses of canvas in the game seem to work OK.

Screenshots attached of rendering in software and hardware modes using current Canary. You can see the canvas normally is transparent and has a bunch of sprites and UI painted into it.
 
Screenshot 2019-01-21 17.05.39.png
818 KB View Download
Screenshot 2019-01-21 17.06.25.png
1.0 MB View Download

Comment 1 by swarnasree.mukkala@chromium.org, Yesterday (26 hours ago)

Labels: Needs-Triage-M73 Needs-Bisect

Comment 2 by susan.boorgula@chromium.org, Today (18 hours ago)

Cc: susan.boorgula@chromium.org
Components: Blink>Canvas
Labels: Triaged-ET Needs-Feedback
kg@ Thanks for the issue.

Tested this issue on Windows 10 on the reported version 73.0.3679.0 and the latest Dev 73.0.3673.0 and unable to reproduce the issue by following the below steps.

1. Launched Chrome and Disabled Hardware acceleration.
2. Navigated to http://game.granbluefantasy.jp/ and could observe that the Game sprites and assets are rendering as expected and no issues are observed.
Attached is the screen cast for reference.

Request you to check and confirm if anything is missed from our end in triaging the issue.
Also request you to retry the issue on a new chrome profile without any flags/extensions and update the thread with the observations.

Thanks..
923970.mp4
1.3 MB View Download

Comment 3 by k...@luminance.org, Today (18 hours ago)

Likely doesn't reproduce in the game's tutorial, as it uses different code.
Project Member

Comment 4 by sheriffbot@chromium.org, Today (18 hours ago)

Labels: -Needs-Feedback
Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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