SystemJS versioning for production and cache management (requirejs urlArgs alternative)

Long story short: there were issues on github of SystemJS about cache bust. But thing are not offically implemeted yet. At the moment there is a custom hook, which can be easily added

var buildNumber = 1234, // made your own build number
    systemLocate = System.locate;
System.locate = function(load) {
  return Promise.resolve(systemLocate.call(this, load)).then(function(address) {
    return address + '?build='+buildNumber;
  });
}

EDIT fix typo