The two sessions could not be linked, but after I close incognito, the counter and the stored text in normal Chrome are reset. Why does that happen?
> When you visit a page where you don't have an ETag (like incognito mode), your session will be emptied.
This unfortunately also throws away your other browser session at the same time. In practice a website would probably issue a new etag for the incognito session, and your existing browser session will simply continue.
You could probably have submitted a bug to the Chrome team and get a bounty for this thing. It kind of allows to track the incognito session linking it to a normal session.