If I try to load react-dom with RequireJS, I get an error: "Mismatched anonymous define()".
Looking at the react-dom from the 15.4.0 distribution (https://cdnjs.cloudflare.com/ajax/libs/react/15.4.0/react-dom.js), I notice that there seem to be two UMD wrappers at the top.
This is probably related to the change in the packaging structure (#7164 and #7168).
};
var domFiberMin = {
  entries: [
    './build/node_modules/react-dom/lib/ReactDOMFiber.js',
  ],
  outfile: './build/react-dom-fiber.min.js',
  debug: false,
  standalone: 'ReactDOMFiber',
  
  
  transforms: [shimSharedModules, envifyProd, uglifyify],
  globalTransforms: [envifyProd],
  plugins: [collapser],
  
  
  after: [wrapperify, minify, bannerify],
};
module.exports = {
  basic: basic,
  min: min,
  addons: addons,
  addonsMin: addonsMin,
  dom: dom,
  domMin: domMin,
  domServer: domServer,
  domServerMin: domServerMin,
  domFiber: domFiber,
  domFiberMin: domFiberMin,
};