Sample with async and sequelize where the "catch all" .catch() still get an unhandled exception.

sqlAsync

async.series([
    function(callback) {
        sequelize
            .authenticate()
            .then(function() {
                callback();
            })
            .catch(function authException(err) {
                //console.log(err);
                callback(err);
            });
    },
    function(callback) {
        sequelize
            .sync(syncOptions)
            .then(function() {
                callback();
            })
            .catch(function syncException(err) {
                callback(err);
            });
    }],
    function(err) {
        if (err) {
            //handle error
        }
        //do stuff herer :D
    }
);