Clear the history and cookies from Safari on your iPhone
The policy is "Clear Browser History" which can be set to "Do not allow clearing browser history in settings menu". UPDATE: Since posting this How-to the Chromium team has changed some behavior of the clear browser history popup box in the settings menu, so this no longer works. How to Make Edge Browser Automatically Delete Your History Jul 29, 2016 Turn Private Browsing on or off on your iPhone or iPod
Block users from deleting the history in Google Chrome
Jan 12, 2017 Delete your activity - Computer - Google Search Help
Open the Google Chrome browser on your computer. The Chrome icon looks like a three-colored …
Delete Browsing History Automatically in Chrome, Firefox, IE