TalkBack with Android 4.4.2 with "Internet" 1.5.28
TalkBack with Android 4.4.2 with Chrome 39.0.2171.59 (Doesn't support role="alert". Doesn't say "alert," but works due to explicitely setting aria-live.)
NVDA 2014.1 with IE 11.0.9600.17280 (Doesn't support role="alert". Doesn't say "alert," but works due to explicitly setting aria-live.)
iOS 8.1.1 VO Safari (just the first time)
Doesn't Work
NVDA 2017.2 with FF 54.0.1 (just says alert, but doesn't read the text)