[Touche]

Yes, but if the success handler throws you won't catch it. For example:

  promise.then(function(){
    throw new Error('Oh no, not caught');
  }, function(err){

  });

But this will catch it:

  promise.then(function(){
    throw new Error('Oh no!');
  }).catch(function(err){
    // Caught it ;)
  });

As will this:

  promise.then(function(){
    throw new Error('Oh no!');
  }).then(null, function(err){
    // Caught it ;)
  });

Point being that your error handling need to be absolute last, and not paired with a success handler.