UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Steps to reproduce the problem:
1. Goto https://minorninth.github.io/aria-live-region-tests/live_region_tests.html
2. Enable VoiceOver in OSX
3. Click on some of the controls which will insert aria-live content, for example 'add new alert to page'
4. Content is injected but not read

What is the expected behavior?
I expect the browser to read the newly inserted aria-live regions

What went wrong?
Chrome is not reading the aria-live marked up content.

I do believe this is a regression, but I don't have version data or anything to back it up -- I'm fairly certain this worked in previous versions of chrome.  I also don't know if its specific to the version of OSX and/or Voiceover.

If you step through the reproduction steps in Safari, VoiceOver works as expected.  In Chrome and/or Mozilla, the content is not announced.

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 69.0.3497.100  Channel: stable
OS Version: OS X 10.13.6
Flash Version: 

Version Details:

OSX: 10.13.6 (17G65)
Chrome: Version 69.0.3497.100 (Official Build) (64-bit)