Backbone Model global error hadling

demo.js

Backbone.originalSync = Backbone.sync;

Backbone.sync = function (method, model, options) {
             
  var errorOverride = options.errorOverride;
  if(errorOverride){
    options.errorOverride = function(resp){
      errorOverride(model, resp, options);
      model.trigger('error', model, resp, options);
    }
  }
  
  var xhr;
  xhr = Backbone.originalSync(method, model, _.extend(options, {error: options.errorOverride || options.error}));
  xhr.fail(function(){
    if(!options.errorOverride){
      //HANDLE GLOBAL ERRORS HERE
      console.log("Global handler called");

    }
  });
  return xhr;                
};

var M = Backbone.Model.extend({
  url: '/some/non-existent/path'
});

var m = new M();
m.save(null, {
  error: function() {
    console.log("options error", arguments);
  },
  errorOverride: function() {
    console.log("options error arun", arguments);
  },
  success: function() {
    console.log("options success", arguments);
  }
});