title: Microsoft Graph Teams API not working when ResourceURI contains ending slash
body: <p>I'm trying out the beta API's for Microsoft Teams that exist within Microsoft Graph. I have noticed that my request always fails when requesting a token with resource uri "<a href="https://graph.microsoft.com/" rel="nofollow noreferrer">https://graph.microsoft.com/</a>", but it works on other API endpoints like "<a href="https://graph.microsoft.com/v1.0/me" rel="nofollow noreferrer">https://graph.microsoft.com/v1.0/me</a>".
  If we change the resource uri to "<a href="https://graph.microsoft.com" rel="nofollow noreferrer">https://graph.microsoft.com</a>" the call does work for Teams releated API's.</p>
  
  <p>Is this expected behaviour from the Graph? Is it related to being in beta?</p>