story
There are bugs for NSSpellChecker going back as far as 2009 regarding automatic language detection (they're, however, now annoying as piss to link to... because all the old mailing lists/archives have been seemingly nuked. Thanks, Cocoa community!). This in turn hits Electron apps, since they're just passing back to the native API anyway.
https://github.com/electron-userland/electron-spellchecker/i...