Very strange, for me working as well. I will check it as soon as possible.
Sorry, is is working for you in 4.9.1, or is it not working in 4.9.1?
In that case it might be something else in my setup that’s incorrect. I didn’t mean to be so hard with my review.
Yes. For me plugin working in WordPress 4.9.1.
I just tested it in on my website and everything works okay, I don’t know why You have such issue.
