IFrameClassAppender.js

var IFrameClassAppender = (function (window, $, self, undefined) {
// ReSharper disable once InconsistentNaming
    var isFrame, body, ua, iOS, iOS8;

    self.init = function () {
        isFrame = (window.top !== window.self);
        if (isFrame) {
            body = $('body');
            body.addClass('iframe');
            ua = navigator.userAgent.toLowerCase();
            iOS = /(iphone|ipod|ipad)/.test(ua);
            iOS8 = /(iphone|ipod|ipad).* os 8_/.test(ua);
            if (iOS && !iOS8) {
                body.addClass('legacyApple');
            }
        }
    };
    self.isFrame = isFrame;
    return self;
}(window, jQuery, IFrameClassAppender || {}));
$(document).ready(function() {
    IFrameClassAppender.init();
});