“I just started an article in Polish. I can type in every letter, except Ś. When I press the key for Ś, the letter just doesn’t appear. It only happens on Medium.” This was odd. We don’t really special-case any language in any way, and even if we did… out of 32 Polish characters, why would this random one be the only one causing problems? Turns out, it wasn’t so random. This is a story of how ...