[iMore Question]

Anybody figure out how? Even when I manually erase then reopen safari most reappear. Repeat again same thing.

[Just_Me_D]

Nope. It persisted in iOS 10.3.3 beta - at least the last one I used prior to installing iOS 11 - but the problem is indeed fixed in iOS 11.

[evanking527]

Which device are you using?

[evanking527]

If you have multiple devices, such as an iPhone, iPad, or Mac, make sure they are on the same iCloud account. Then delete them from another device. I can’t remember if clearing cookies from one device syncs to your other devices, but your browsing history does this too, so this might work for the time being.