Hi guys, I'm trying to set up a validator to check that usernames consist letters, numbers and underscores here, and I can't work out why the validator isn't listing this field as one with a problem.
The regexp tests okay, and I've added the jQuery validator the way you would expect, by following this demo, but bad usernames are sailing through validation when they shouldn't. I've put together an example here on jsbin: http://jsbin.com/ahazu/ What am I doing wrong here?
