ReactRenderer used Object.assign which is an ES 2015 feature that is not supported by IE11. babel-polyfill will now polyfills that function for browsers that do not support it before ReactRenderer tries to use it.
ReactRenderer used Object.assign which is an ES 2015 feature that is not supported by IE11. babel-polyfill will now polyfills that function for browsers that do not support it before ReactRenderer tries to use it.