Backbone global sync error handler

demo.js

$(document).ajaxError(function(event, request, settings) {
  //HANDLE GLOBAL AJAX ERRORS HERE
});

Backbone.originalSync = Backbone.sync;
 
Backbone.sync = function (method, model, options) {
             
  var errorOverride = options.errorOverride;
  if(errorOverride){
    options.global = typeof errorOverride !== "function";
    options.errorOverride = function(resp){
      errorOverride(model, resp, options);
      model.trigger('error', model, resp, options);
    }
  }
  return Backbone.originalSync(method, model, _.extend(options, {error: options.errorOverride || options.error}));                
};
 
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);
  }
});