title: FB Logout Flow: how to revoke user permissions?
body: <p>I was having problems with my FB logout flow, and I think I have it. I ended up having to add an HTTP DELETE request to</p>
  <pre><code>https://graph.facebook.com/v9.0/[user-ID]/permissions?access_token=[access_token]
  </code></pre>
  <p>In order to revoke the user's permissions.</p>
  <p>The problem I have is that now there's a popup every time it goes to the page that invokes this request (I use PHP's cURL library to invoke the request) asking to continue and whatnot. I click the &quot;continue as&quot; button, but the popup never goes away... it just turns to a blank screen.</p>
  <p>Am I doing something wrong here? If I invoke the request without the access token, I get an error stating it needs an access token...</p>