解决alert跟confirm在ios上携带链接

// 解决alert弹窗携带链接
  window.alert = function (name) { // 重写alert方法去掉ios下alert带的url
    var iframe = document.createElement("IFRAME");
    iframe.style.display = "none";
    iframe.setAttribute("src", 'data:text/plain,');
    document.documentElement.appendChild(iframe);
    window.frames[0].window.alert(name);
    iframe.parentNode.removeChild(iframe);
  }
// 解决confirm弹窗携带链接
  window.confirm = function (message) {
    var iframe = document.createElement("IFRAME");
    iframe.style.display = "none";
    iframe.setAttribute("src", 'data:text/plain,');
    document.documentElement.appendChild(iframe);
    var alertFrame = window.frames[0];
    var result = alertFrame.window.confirm(message);
    iframe.parentNode.removeChild(iframe);
    return result;
  };