如何捕获iframe的HTTP代码？ [英] How do I capture the HTTP code of an iframe?

问题描述

我想抓住iframe的HTTP代码。根据HTTP代码，iframe必须继续/停止加载。有没有办法做到这一点，使用Jquery等？或者我应该首先使用Curl来检查HTTP代码，然后加载iframe？

I would like to catch the HTTP code of an iframe. Depending on the HTTP code the iframe must continue/stop loading. Is there any way to do this, using Jquery etc? Or should I use Curl first to check the HTTP code and then load the iframe?

提前致谢。

推荐答案

您可以使用XmlHttRequest加载iframe来执行此操作：

You can do this by using XmlHttRequest to load your "iframe" :

var httpRequest = new XMLHttpRequest();
httpRequest.onreadystatechange = function() {
    if (httpRequest.readyState === 4) {
        if (httpRequest.status === 200) {
            // success
            document.getElementById('iframeId').innerHtml = httpRequest.responseText;
        } else {
            // failure. Act as you want 
        }
    }
};
httpRequest.open('GET', iframeContentUrl);
httpRequest.send();

不需要为此使用jquery。

No need to use jquery just for this.

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