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Issue 616741 link

Starred by 2 users
Status: Duplicate
Owner: ----
Closed: Jun 2016
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug



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Chrome 51 crashes on Desmos calculator when VoiceOver is Running

Reported by stephen....@gmail.com, Jun 2 2016 
UserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0

Steps to reproduce the problem:
1.  In Chrome, visit www.desmos.com/calculator.
2.  Enable VoiceOver with CMD+F5.

What is the expected behavior?
The list of expressions gains focus, and calculator can be used.

What went wrong?
The browser crashes.

Crashed report ID: 

How much crashed? Whole browser

Is it a problem with a plugin? No 

Did this work before? Yes 

Chrome version: 51.0.2704.79 m  Channel: stable
OS Version: 10.11.5
Flash Version: Shockwave Flash 18.0 r0

This works beautifully in Chrome 50. Regressed in 51.

Comment 1 by jwmerr...@gmail.com, Jun 2 2016 

I have prepared a reduced demonstration of this issue, and published it at https://github.com/jwmerrill/chrome-51-voiceover-crash

The problem seems to be a bad interaction between Chrome, VoiceOver, and a certain subsetted version of the Symbola font.

To observe the problem, you can either clone the repo above and run it locally, or just observe it over the web at

crashes: https://rawgit.com/jwmerrill/chrome-51-voiceover-crash/4822707b37b05cea452d35f7b6c5563659318f3a/crashes.html
works: https://rawgit.com/jwmerrill/chrome-51-voiceover-crash/4822707b37b05cea452d35f7b6c5563659318f3a/works.html

In the "crashes.html" version, activate OS X VoiceOver (cmd-F5), and then focus the "y=x" input. Doing this will crash the tab. Reloading the tab will crash the whole browser.

The "works.html" version is a similar setup that does not demonstrate the crash. The only difference here is that it pulls in a different, non-subsetted version of the Symbola font.

Comment 2 by msrchandra@chromium.org, Jun 3 2016

Mergedinto: 605868
Status: Duplicate (was: Unconfirmed)
@stephen.clower -- Thank You for the report.
Able to reproduce the issue on Mac OS X 10.11.5 using Chrome Stable# 51.0.2704.79.

Whole Tab crashed.
Crash ID :: cabaab5c00000000

The Stack trace of the mentioned crash ID is similar to Bug ID: 605868. Merging the issue into same.

Note: This Crash is not reproducible on Latest Canary# 53.0.2757.0.
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