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Issue metadata

Status: Untriaged
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 3
Type: Bug



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Grammarly extension causes rendering issues in Facebook Messenger

Project Member Reported by rsch...@chromium.org, Nov 16

Issue description

Chrome Version: 70.0.3538.76 (Official Build) beta (64-bit)
OS: Pixelbook: 11021.56.0 (Official Build) beta-channel eve

What steps will reproduce the problem?
(1) Go to FB messenger: https://www.facebook.com/messages/
(2) Begin typing in a chat box. I've found it triggers the bug faster if you do lots of editing, and in particular lots of select all / cut / paste.
(3) Chat box begins showing rendering artifacts (see attached)

At first I thought this was a Grammarly bug, but one time I noticed that it was rendering content from a different open tab.

about:gpu is copied here: https://docs.google.com/document/d/1U5UMLD384qV8xJ_O2ph_mhUlfRjXMOHjEzyOHLKbzjE/edit

Also ccing Nick from Grammarly here.
 
Screenshot 2018-11-16 at 11.36.04 AM.png
88.0 KB View Download
Screenshot 2018-11-16 at 12.46.59 PM.png
23.0 KB View Download
Oh, I should add that if I disable the extension in about:extensions I'm unable to repro the bug.
Cc: -npstanf...@gmail.com nicholas...@grammarly.com
Labels: Needs-TestConfirmation
Could TE help confirm this?
Labels: Needs-Bisect

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