text: export default function detectSupportsPassive () {
      let supportsPassive = false;
  
      try {
          let opts = Object.defineProperty({}, 'passive', {
              get () {
                  supportsPassive = true;
              }
          });
  
          window.addEventListener('testPassive', null, opts);
          window.removeEventListener('testPassive', null, opts);
      } catch (e) {}
  
      return supportsPassive;
  }
  