Oh, ups! Forgot to remove a test

Tried to automatically replace "cu
nt" with "cu[
b][/
b]nt" in the textbox you type, but it sorta failed. I suspect the javascript security sandbox doesn't allow this (a system which is HUGELY broken and HUGELY unnessesary, but whatever).
Edit: I noticed that even after fixing, the message still appears. This is caused by your browser cache, use ctrl+f5 (or cmd+f5 or something) to reload the page without cache. This should refresh the script I injected on the page, which caused the message. After refreshing the browser got the new version without message.
What a big boss ! I am a noob in informatic lol