User blog comment:Rappy 4187/Technical Update: November 30, 2016/@comment-11733175-20161203110807

With the change to the wiki navigation, I've found a bit of a flaw in the JS test mode - you can't enable it as an anonymous user.

For anyone appending links to the "On the Wiki" tab, chances are the links are now in the wrong place. To fix it isn't difficult, but to test it for anons requires c/p'ing code into your console which kind of defies the point of having the test mode in the first place.