It wasn't my idea so, no, that was never my plan :) Though, you do raise a valid point, so let's see how it plays out. setTimeout = function(){...} de

It wasn't my idea so, no, that was never my plan :) Though, you do raise a valid point, so let's see how it plays out. setTimeout = function(){...} delete setTimeout // true - you've removed the patch window.setTimeout = function(){...} delete window.setTimeout // true - you've removed the patch window.constructor.prototype.setTimeout = function(){...} delete window.constructor.prototype.setTimeout // false - the patch is still there! I don't know about the hierarchy of the prototype chain up at this level but it seems to work. Maybe there's some other way of getting to the built-in setTimeout so you can create your own version to mask the one I added? EDIT you can embed an iframe and rip the native setTimeout from there.