if (document.location.protocol=='http:'){
  document.location.protocol = 'https:';
}
	
if (document.location.protocol=='http:'){
  window.top.location = 'https://YOUR_APPLICATION_PAGE_URL'
}
	
if (document.location.protocol=='http:'){
  var applicationUrl = 'https://facebook.com/example-application';
  var canvasURL = 'http://example.com/facebook-canvas';
  var currentAppPageUrl = (document.location+'').replace(canvasURL, applicationUrl);
  window.top.location = currentAppPageUrl;
}
	
if (document.location.protocol=='http:'){
    var applicationUrl = 'https://facebook.com/example-application';
    var canvasURL = location.protocol+'//'+location.host+location.pathname;
    var currentAppPageUrl = (document.location+'').replace(canvasURL, applicationUrl);
    try {
        window.top.location = currentAppPageUrl;
    } catch (e) {
    }
}