title: How do you generate an expired Facebook Access Token for testing?
body: <p>We are trying to update our app and server to handle the upcoming <a href="https://developers.facebook.com/roadmap/offline-access-removal/" rel="nofollow">Facebook offline_access deprecation</a>.  However, we're having trouble testing it since we can't find an easy way to generated an expired access token. </p>
  
  <p>We've tried using the <a href="https://developers.facebook.com/tools/explorer/?method=GET&amp;path=me" rel="nofollow">Graph API Tool</a> to create an access token but change a character in it. However this just results in an invalid token instead of a valid expired token.</p>
  
  <p>I'm shocked Facebook hasn't provided a way to do this to facilitate testing.  So I'm just assuming I've missed some straightforward way to do this, so would appreciate a pointer from someone. </p>