Microsoft Edge:

  1. Click on the 3 horizontal dots on the upper right hand corner of the window. 
  2. Click on Settings.
  3. Search for Cache and click Clear Browsing data now.
  4. Click on Change Last hour and change to All time.
  5. Click on Clear now.
  6. Once it has completed, shut Edge down by pressing the X on the upper right hand corner and then open it again.
    Please click below for a video

    Clearing Web browser cache (sharepoint.com)