如何获得iframe响应标题？ [英] How to get iframe response headers?

问题描述

有没有办法获得iframe onload的响应头？

Is there a way to get response headers of an iframe onload?

我已经使用了它，但实际上我找不到有用的东西！

I have already googled it, but really I could not find something useful about it!

推荐答案

不是。如果iframe位于同一个域中，则可以访问其包含一些有用信息（如 document.referrer ）的文档对象，但是如果不制作Ajax，则无法拦截完整的HTTP标头请求URL。这意味着再次请求URL。例如：

Not really. If the iframe is on the same domain you can access its document object which contains some useful information such as document.referrer, but you cannot intercept the full HTTP headers without making an Ajax request for the URL. This would mean requesting the URL again. e.g:

$.ajax( { url: $(#myFrame).attr('src'), success: function(r,x){
    console.log( x.getResponseHeader('SomeHeader') );
} } );

只有当iframe src与调用脚本位于同一个域时才有效。

This will only work if the iframe src is in the same domain as the calling script.

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