There was ADsafe by Douglas Crockford [1], but it looks rather abandoned [2]. There's also Caja by Google [3], but that is abandoned too. [1] https://www.croc

There was ADsafe by Douglas Crockford [1], but it looks rather abandoned [2]. There's also Caja by Google [3], but that is abandoned too. [1] https://www.crockford.com/adsafe/index.html https://www.crockford.com/adsafe/index.html [2] https://github.com/douglascrockford/ADsafe https://github.com/douglascrockford/ADsafe [3] https://developers.google.com/caja https://developers.google.com/caja