Nothing is happening.
I think it might be updating the wrong icon. I see that there's an element option but specify the simple favicon doesn't work. If a different icon is actually in use by Chrome (surely not, right?), then I don't know which I should be specifying.
So next I tried creating a favico instance for every link[rel="icon"] I have and updating all of them in a loop. That didn't work either.
#59 also doesn't help.
Any idea @ejci?