title: Can I verify a Facebook jwt token created using native iOS sdk with a .net backend?
body: <p>I'm implementing Facebook logins on an iOS app with a .net core web api backend. </p>
  
  <ol>
  <li>I created the app in Facebook with a client id and secret.</li>
  <li>I added iOS and web pages to my app </li>
  <li>The iOS app successfully connects and aquires a token</li>
  <li>I added the app.UseFacebook code to my startup.cs and configured it with the app id etc.</li>
  <li>I added the authorize attribute to an action I'm restricting access to</li>
  <li>I call this web api action from iOS with an https get, and add an http header Authorization Bearer (token I acquired from Facebook)</li>
  </ol>
  
  <p>The get returns status code 401 as if my token was invalid. I'm wondering if iOS tokens can be used with a web page app as well? I have those 2 configured for my Facebook app.</p>