title: Office-js addin with Excel and Edge Webview - how to delete cache?
body: <p>We are developing an office-js javascript addin for Excel. We are testing the addin with sideloading in Excel on Windows. After updating Windows and Excel to new versions, the webview in Office/Excel has changed from IE to Edge. Now we need to delete the Edge browser cache in order to see the changes in the updated web service.</p>
  
  <p>To completely reload a sideloaded office-addin, it was sufficient to delete the local storage and IE browser cache.
  After updating to the Edge webview, we do not manage to clear the browser cache.</p>
  
  <p>In IE, we could flush the local storage and browser cache this way:
  del /q /s /f C:\Users\username\AppData\Local\Microsoft\Windows\Caches 
  del /q /s /f C:\Users\ username\AppData\Local\Microsoft\Windows\INetCache
  del /q /s /f C:\Users\ username\AppData\Local\Microsoft\Office\16.0\WEF</p>
  
  <p>psexec.exe -l c:\windows\system32\RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 4359</p>
  
  <p>Instead of psexec (sysinternals) we could as well delete the IE cache via the internet options dialog.</p>
  
  <p>In order to delete the Edge cache, we tried 
  del /q /s /f C:\Users\username\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC
  or by opening the Edge browser end delete the cache via the UI.</p>
  
  <p>Unfortunately the Edge cache seems to be not completely deleted, the office addin does not completely show the changed contents from the web service.</p>