version 71.0.3578.10 (Official Build) dev (64-bit)
OS: MacOS 10.14
Steps:
# Launch VoiceOver (CMD + f5)
# Launch Chrome
# Navigate to https://minorninth.github.io/aria-live-region-tests/live_region_tests.html
# Navigate to the heading titled "aria-live="polite" aria-relevant="text additions" (default)"
# Find and activate the button called "add element to atomic live region"
Expected: VoiceOver should announce "Live region succeeded."
Actual: VoiceOver announces text in chunks. Example: "Live region suc-ceeded" (instead of the entire string of text)
Reproduces in Dev