title: How to make the close button of Fancybox invisible?
body: <p>I do not want the user to be able to close the fancybox by clicking the default close button at the upper right corner :</p>
  
  <p><a href="https://i.stack.imgur.com/wFCQH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wFCQH.png" alt="enter image description here"></a></p>
  
  <pre><code>$("a#ExporterSujetReponse", context).fancybox({
      'onStart': function () {
  
              loadDeverouillerSujetAvecReponse (this) ;
  
      },
      'overlayOpacity':0.4,
      'overlayColor':'#000000',
      'titleShow':false,
      'hideOnOverlayClick':false,
      'centerOnScroll':true,
      'onComplete' : function(){
              $.fancybox.resize();
              $('#fancybox-content').removeAttr('style').css({ 'height' : $(window).height()-100, 'margin' : '0 auto', 'width' : $(window).width()-150 });
      }
  });
  </code></pre>
  
  <p>So how to make the default close button invisible ?</p>