Does not work under chromeOS 105 This is a fairly simple exploit on chromeOS to gain incognito access on any chromebook. The point of this is to hide browsing history on less sophisticated systems, and also more importantly bypassing extensions. I do not know where it starts working, but I know it is working on chromeOS version 110. )

1 Get a wifi network with a captive portal, with a link. It is fine to make your own. It is fairly easy to get your own internet connection, as you could likely make a "router" that connects to the primary router at hand. The only thing that matters is a captive portal. 

2) Sign in. 

3) Click the link. 

4) Profit. This vulnerability worked on my chromebook, I cannot vouch for it working for you. A way it likely works is that captive portals want to be temporary, so they wipe the data left behind in an incognito window. I will work on more exploits. Do not wait to ping me if you have any questions. Have a good one, all. How to make own captive portal (you need to make a website, google sites should work https://pastebin.com/2AW3wiPC

CREDIT TO NotGamerFromGamerTown#8823