export function isSafariOnIphone() {
  var userAgent = window.navigator.userAgent;
  var isIOS = /iPad|iPhone|iPod/.test(userAgent) && !window.MSStream;
  var isChrome = /CriOS/.test(userAgent);
  var isOpera = /OPiOS/.test(userAgent);
  var isSafari = /Safari/.test(userAgent) && !isChrome && !isOpera;

  if (isIOS && isChrome && !isOpera) {
    return false;
  } else return isIOS && isSafari;
}