[saycheese]

(Comment removed.)

[kurthr]

Well, I think the dictionary disagrees. http://www.dictionary.com/browse/corrector

I'm going to assume that it was meant to be ironic (or errorful).

[tyingq]

The demo itself agrees. It changes the word correcter, but not the word corrector :)

[camoby]

So its name is a built-in test case?

Genius. ;)

[delinka]

Is the final word not supposed to be "corrector?"

https://en.m.wikipedia.org/wiki/Corrector