javascript - 如何防止使用javascript弹出？

Question

无论如何我可以使用 javascript 来阻止来自另一个网站 (iframe) 的弹出窗口吗？

示例:我有一个网站，它的 iframe 连接到其他几个网站。其中之一有一个像这样的弹出脚本:

<script type="text/javascript">
var popunder=new Array()
popunder[0]="http://www.target.com"

//Specify the width and height of new popunder window (in pixels).
var width = '700'; 
var height = '450';

//these are obvious variables. set "yes" or "no".
var p = 'scrollbars=yes, resizable=yes, toolbar=yes,' + 'menubar=yes, status=yes, location=yes, left=85, top=20, height=' + height + ',width=' + width;

// Load new PopUnder only once per browser session? (0=no, 1=yes)
// Putting 0 will cause the Popunder to load every time page is loaded
// Specifying 1 will cause it to load only once per session
var one_time=0

// That's it! Don't edit the code below unless you're really good. :-P //

function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) { // if the cookie exists
      offset += search.length
      //set the index of beginning value
      end = document.cookie.indexOf(";", offset);

    if (end == -1) // set the index of the end of cookie value
         end = document.cookie.length;
         returnvalue = unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

function loadornot(){
if (get_cookie('popunder')==''){
load_pop_power()
document.cookie="popunder=yes"
}
}

function load_pop_power(){
win2 = window.open(popunder[Math.floor(Math.random()*(popunder.length))], "bw", p)
win2.blur()
window.focus()
}

if (one_time==0)
load_pop_power()
else
loadornot()
</script>

前提是无法阻止此弹出窗口，并且用户在 firefox 或 IE 上的安全设置较低。

我有 ff。网站上的 iframe: (iframe.php)

<iframe src="http://friend.com/pop.php"></iframe>

iframe.php 页面应该怎么做才能防止弹窗？

Answer 1

这是不可能的。 wdm 是对的。但此处提供了更详细的答案。

How to block pop-up coming from iframe?