动态将document.domain设置为iframe [英] Dynamically set document.domain to iframe

问题描述

我有一个插入页面的iframe，称为帮助者".因此，由于具有相同的来源政策，因此我需要将iframe域设置为与父窗口域相同.但是我无法访问父窗口域.怎么解决?

I have an iframe that injects in pages, called him "helper". So due to same origin policy I need to set iframe domain the same is parent window domain. But I can't get access to parent window domain. How can it be solved?

此代码当前适用于第二级域:

This code is currently working for 2nd level domains:

pathArray = window.location.host.split('.');
var arrLength = pathArray.length;
var domainName = pathArray.slice(arrLength - 2, arrLength).join('.');
document.domain = domainName;

但是我需要以某种方式从父窗口获取它，而不是依赖于第二级域

but I need to somehow get it from parent window rather than relying on 2nd level domain

推荐答案

我不知道是否有帮助，但是我在iframe中使用了它

I do not know if it will help but i use this in iframe

 try {
    var domainName = window.parent.parent.iframeData.domainName;
}
//Access violation
catch (err) {
    document.domain = window.location.hostname.replace('www.', '');
}

所以我检查是否已经设置了域，但我们有例外ang尝试猜测域，无论哪种情况，都无需设置域

So i check if domain already set we have exception ang try to guess domain, in either case, there is no need to set a domain

更正确地使用帖子根据需要设置域

More correctly to use post message to set domain if needed

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