title: Empty data response from Facebook API, using app access token
body: <p>Code that I had written to fetch a Facebook page's posts using an app access token has suddenly stopped working. The JSON response's <code>data</code> object is an empty array. I'm not getting any error messages. When I try making the same request using an access token generated by the Graph API explorer, I get back a valid JSON response containing data. I've tried resetting my app's secret and generating a new access token, but I still get back an empty <code>data</code> object. </p>
  
  <p>When I use the Facebook access token debugger, the only information returned is the App ID.</p>
  
  <p>I generated my app access token by making a GET request to <code>https://graph.facebook.com/oauth/access_token?client_id=&lt;app_id&gt;&amp;client_secret=&lt;app_secret&gt;&amp;grant_type=client_credentials</code></p>
  
  <p>I don't have control over the page I'm trying to fetch data from, but I can contact the admin. Are there any permissions I should have them check?</p>
  
  <p>Without any error messages or feedback, I'm at a loss on how to debug this. Does anyone have any advice?</p>