[staticcontrollers] Raise Forbidden, not Unauthorized Unauthorized means "log in to get access", as it results in a HTTP 401. Here, the error is pretty much permanent, and returning 401 instead of 403 confuses things terribly. (This seems to be a pretty widespread confusion :/)

$(document).ready(function() {
    $('a.rhythm').click(function (event){
        $('div#pageContent').toggleClass('rhythm_bg');
        $('div#page').toggleClass('rhythm_bg');
        event.preventDefault();
    });
});