Intercept requirejs calls and output info to console

requirejs.logger.js

var req_original = {
  completeLoad: require.s.contexts._.completeLoad,
  load: require.s.contexts._.load,
  execCb: require.s.contexts._.execCb
};

require.s.contexts._.completeLoad = _completeLoad.bind(require.s.contexts._);
require.s.contexts._.load = _load.bind(require.s.contexts._);
require.s.contexts._.execCb = _execCb.bind(require.s.contexts._);

function _completeLoad(moduleName) {
  console.log('Completed load of ' + moduleName);
  return req_original.completeLoad(moduleName);
}

function _load(id, url) {
  console.log('  Loading ' + id + ' from ' + url);
  return req_original.load(id, url);
}

function _execCb(name, callback, args, exports) {
  console.log('Initializing ' + name);
  return req_original.execCb(name, callback, args, exports);
}