Example of component method that performs an action when a form inside an iframe is submitted

IFrame.jsx

class IFrame extends PureComponent {
  // ...
  
  bindEventsToFormsInIframe(iframeElement) {
    const { contentDocument, contentWindow } = iframeElement;

    jQuery(contentDocument).on('submit', '#account-form', () => {
      jQuery(contentWindow).on('unload', () => {
        // Dispatch redux action responsible for fetching and updating the account
        dispatch({ type: 'FETCH_ACCOUNT' });
      });
    });
  }
  
  // ...
}