I’ve seen this a LOT lately. The Google translate function offers a request to translate an ‘Italian’ page to English. The only problem is that the page is written in English. Below is one of several pages I’ve run into recently with this phenomenon.
UPDATE:
I’m now being told I”m reading Bokmål. From Wikipedia:
Bokmål (lit. “book language”), is the more commonly used of the two Norwegian written standard languages, the other being Nynorsk.

