CHROME
Click on the three dots in the upper right and choose Clear Browsing Data.
Basic tab - Set the Time Range to "All time", make sure all 3boxes are checked,
Advanced tab - Time Range set to "All Time" see image below, be sure Site Settings and Hosted app data are checked, then click clear data button. 
Close browser when the process is complete and reopen.
EDGE
Click on the three dots at the top right of the window and choose History.
Select Trash icon and the window will open to Clear History options.
Set Time range to "All Time", chedck the noted boxes in image below, click "Clear Now" button. When process is complete, close and reopen browser.
