Marmite is offering loyal fans the chance to personalise your own jar. If you type a swear word, it comes up on the label as asterisks, and triggers a profanity warning.
Exactly the same thing happens when you try using the word ‘Brexit’.
To the developer who did this: huge props. It gave me a good laugh this morning. I would still like a jar of Brexit Marmite, but I guess I might have to make my own.
Edit: looks like some swearwords have slipped through the net.