使用jquery检测iframe src的变化 [英] Detect iframe src change using jquery

问题描述

比方说，一个< iframe> 最初被加载指向一个特定的src。用户点击一个超链接，iframe的内容发生变化。

Lets say an <iframe> is initially loaded pointing to a certain src. The user clicks on a hyperlink and the contents of the iframe changes.

我想检测iframe的新src。

I would like to detect that new src of the iframe in full.

不幸的是，当检测到变化时，似乎只提供了原始的src。它检测到这种变化，而不是它改变了什么。

Unfortunately it appears to only provide the original src when a change is detected. It detects the change, just not what it changed to.

也许这是一个特定于浏览器的问题。

Perhaps it is a browser-specific issue. I am using chrome.

$(function(){
    $('iframe').load(function() {
        var src = $("iframe").attr('src')
        alert(src);
    });
});

http://jsfiddle.net/vud8S/7/

推荐答案

幸运的是不可能从其他网域获取iframe的网址而不是其父网页。您将无法阅读完整的url。

Fortunately it is not possible to get an URL of an iframe from a different domain than it's parent page. You will not be able to read the full url.

如果您尝试阅读文档位置（其src是不同域的iframe）的文档位置，权限错误，看起来类似于这样的：错误：拒绝获取属性Location.href的权限

If you try to read the documents location (of an iframe whose src is a differnt domain) than you will get a permission error that looks similar to this: "Error: Permission denied to get property Location.href"

这是由于同源策略。更多细节： http://de.wikipedia.org/wiki/Same-Origin-政策

This is due to "Same Origin Policy". More details on that: http://de.wikipedia.org/wiki/Same-Origin-Policy

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