I’ve been reading old threads but not much about the level. All I got was : look at the url bar (it changes from /4 to /4?input), some reply must be from before a possible update of the level.
When I try to keep it on /4 it ‘redirects’ me to /4?input .
Not sure what to do here. Any other hint would be welcomed. Also, it only counts my attempts when using the password bar to submit the answer.