document.interactive.js

'use strict';

if (!document.interactive) {
  document.interactive = () => {
    return new Promise((resolve) => {
      if (document.readyState !== 'loading') {
        resolve();
      }
      else {
        document.addEventListener('readystatechange', () => {
          if (document.readyState === 'interactive') {
            resolve();
          }
        });
      }
    });
  };
}