title: Facebook Email field return null (even if the “email” permission is set and accepted) part 2
body: <p>Here's <a href="https://stackoverflow.com/questions/17532476/facebook-email-field-return-null-even-if-the-email-permission-is-set-and-acce">a link</a> to the topic which described my initial problem.</p>
  
  <p>In short: the problem is that in some cases facebook-graph-api doesn't return  the email address of the user. </p>
  
  <p>Other stackoverflow mates suggested to  use his Facebook email if he has a user name (i.e. userName@facebook.com) which I've done. But what to do if the facebook user doesn't have "username" there too. </p>
  
  <p>What would you recommend? To redirect him on the page asking his email address? </p>