Breaking JavaScript execution always when cookie is set
Is it possible to break javascript execution in FireBug (or in some other web developer tool) always when cookie is set (without setting JS breakpoints explicitly)? document.cookie = '...'; Harri This should work (run it in a console): origDescriptor = Object.getOwnPropertyDescriptor(HTMLDocument.prototype, 'cookie'); Object.defineProperty(document, 'cookie', { get() { return origDescriptor.get.call(this); }, set(value) { debugger; return origDescriptor.set.call(this, value); }, enumerable: true, configurable: true }); https://stackoverflow.com/a/41247745/2158271 does not seem to work in