It's official: https://support.google.com/richmedia/answer/6307288   3 cheers for Google!   [UPDATE, June 2018:] Here's the URL for TweenMax (most popular):  https://s0.2mdn.net/ads/studio/cached_libs/tweenmax_2.1.2_min.js   And here are the URLs for everything else:  https://s0.2mdn.net/ads/studio/cached_libs/jquery.gsap_2.1.2_min.js https://s0.2mdn.net/ads/studio/cached_libs/timelinelite_2.1.2_min.js https://s0.2mdn.net/ads/studio/cached_libs/tweenlite_2.