title: Facebook login: Please make sure your redirect_uri is identical to the one you used in the OAuth dialog
body: <p>So I'm out of ideas, I don't know what to check or debug anymore, but on the exception I get this:</p>
  
  <pre><code>string(188203) "Facebook\FacebookAuthorizationException Object
  (
      [statusCode:Facebook\FacebookRequestException:private] =&gt; 400
      [rawResponse:Facebook\FacebookRequestException:private] =&gt; {"error":{"message":"Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request","type":"OAuthException","code":100,"fbtrace_id":"DqCCKoiN0r4"}}
      [responseData:Facebook\FacebookRequestException:private] =&gt; Array
          (
              [error] =&gt; Array
                  (
                      [message] =&gt; Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request
                      [type] =&gt; OAuthException
                      [code] =&gt; 100
                      [fbtrace_id] =&gt; DqCCKoiN0r4
                  )
  
          )
  
      [message:protected] =&gt; Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request
      [string:Exception:private] =&gt; 
      [code:protected] =&gt; 100
  </code></pre>