Why does the browser not see connected react modules?

Question

WordPress

When executing the Webpack build script, chrome throws Uncaught ReferenceError: Content is not defined. Maybe some additional script is needed to be interpreted by the browser? Here are the lines from the assembly file. Here is an error:

ReactDOM.render(React.createElement(Content, { content_text: document.getElementById('content').value }), content_area_wrap);

Although here webpack pulled up:

var Content = React.createClass({
    displayName: 'Content',

The build runs without errors. Script in wp plugin

wp_enqueue_script('key_build', plugins_url( 'js/dist/build.js', __FILE__ ), false, REACT_FSEO_KEYS_LIGHTER_CURRENT_VERSION);

Maybe he does not see the variable, because it is inside an anonymous closure?