No need to replace text. Patch all the fonts in your OS to display something instead of zero width. That will work outside the browser also. There really is no

No need to replace text. Patch all the fonts in your OS to display something instead of zero width. That will work outside the browser also. There really is no valid use case in Latin script so why is zwsp allowed next to Latin characters?! (Emojis is not a valid use case, and why do they depend on zwsp anyway?)