title: Asp.net WebForms Silent Authentication AAD on Teams Tab
body: <p>I'm looking a way to build a Web Forms App C# 4.7 with Azure Active Directory (AAD) Authentication like a SSO Authentication. 
  This WebApp was deployed on Azure Web Application.</p>
  
  <p>I'Would like to use this site from : 
  Web Browser - all</p>
  
  <p>Teams Tab (adding this to teams as a Tab) -- Working on Web and Desktop App</p>
  
  <p>I'have try 3 option : </p>
  
  <p>1/
  Using Azure Web Application Authentication (configuration with our AAD) it's work fine on Web Browser and on Teams Web<br>
  But doesn't Work on Teams Desktop App...</p>
  
  <p>2/
  Implementation off OWin Auth with AAD V2 OAuth2 on C# code it's work like the 1 option. But doesn't work on Teams Desktop App....</p>
  
  <p>3/
  Now I'm looking a way i think this it's good way but i didn't find use on WebForms C# .Net project
  <a href="https://docs.microsoft.com/en-us/microsoftteams/platform/concepts/authentication/auth-tab-aad" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/microsoftteams/platform/concepts/authentication/auth-tab-aad</a></p>