(function(){
    var isWebview = function(){
        if (typeof window.Android !== 'undefined') {
          return true;
        }
    
        var standalone = window.navigator.standalone;
        var userAgent = window.navigator.userAgent.toLowerCase();
        var safari = /safari/.test( userAgent );
        var ios = /iphone|ipod|ipad/.test( userAgent );
    
        if( ios && !standalone && !safari ) {
          return true;
        }
    
        return false;
    };

    if(!isWebview()){
        return;
    }

    window.dataStream.subscribe('m3-app-bookings', ['confirmation'], function(data, event) {
        fetch('https://www.tui-blue.com/6m/app-bookings/booking/'+data.ItineraryNo+'?bookingSystem=sabre&brand=tuiblue', {
            method: 'POST'
        })
    });
  })();