To experimental builds for incognito mode the ability to block all cookies set by third-party sites, including advertising networks and web analytics systems. The mode is enabled via the "chrome://flags/#improved-cookie-controls" flag and also activates an extended interface for controlling the installation of Cookies on sites.
After activating the mode, a new icon appears in the address bar, when clicked, it shows the number of blocked Cookies and provides the ability to disable the blocking.
You can see which cookies are allowed and blocked for the current site in the "Cookies" section of the context menu that is called when you click on the padlock symbol in the address bar. In the future, we plan to add settings to the Chrome configurator that will allow you to delete all cookies and data in internal storage previously set by third-party sites.
Source: opennet.ru