How to clear your cache:
A great article for most major browsers can be found here.
Google Chrome Browser
On your computer, open Chrome.
At the top right, click More
Click More tools then, Clear browsing data.
At the top, choose a time range. To delete everything, select All time.
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
Sign out Everywhere (Log out of IDP/Microsoft sessions)
Under overview, click on Sign out everywhere
Microsoft Edge Browser
To clear the cache, you’ll need to navigate to the Clear Browsing Data option. To get there:
Open Microsoft Edge.
Click the Settings and More menu (the three ellipses).
Underneath Clear Browsing Data, click Choose What to Clear.
Select the items below then click Clear.