incognito window; private browsing window
Computing term for a browser window that does not save browsing history, cookies, or site data. Often used in the context of Chrome's incognito mode.
If you log in using an incognito window, no history will be left.
When looking up presents, it's a good idea to use an incognito window.
Variant with interpunct; less common but still seen.
Wasei-eigo derived from English 'secret' and 'window', referring to a private browsing window in web browsers.