If somewhere inside callbacks from then/done etc occurs exception all other callbacks(either success and fail) - will not be called

var deffered = jQuery.Deferred();

    setTimeout(function delayedFn(){
        deffered.resolve();
    }, 2000);

    deffered.done(function(){
        throw new Error('Error');
        console.log('You never see this');
    }).fail(function(err) {
        console.log('And this is also not reachable')
    });

    deffered.done(function(){
        console.log('It will be not called');
    });

Compared to bluebird/Q - except catch() it call fail()/native Chrome implementation

var promise = new Promise(function (resolve, reject) {
    setTimeout(function(){
        resolve('ook!');
    }, 1000);

});

promise.then(function onResolve(val) {
    throw new Error('oops');

}).catch(function(err) {console.log('It will be printed')});

promise.then(function onResolve(){
    console.log('It will be also printed');
});