虽然没有提及，但在某些情况下可以有所帮助:

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
    if (xhr.readyState !== 4) return;
    if (xhr.status === 200) {
        var doc = iframe.contentWindow.document;
        doc.open();
        doc.write(xhr.responseText);
        doc.close();
    }
}
xhr.open('GET', url, true);
xhr.send(null);

添加一个

  target='_top'

到我的链接在facebook标签为我解决了这个问题…

我几乎尝试了所有的建议。然而，唯一真正解决这个问题的是:

在PHP文件所在的文件夹中创建一个.htaccess文件。 将这一行添加到htaccess: 报头总是不设置x帧选项

通过来自另一个域的iframe嵌入PHP之后应该可以工作。

此外，你可以在你的PHP文件的开头添加:

header('X-Frame-Options: ALLOW');

然而，在我的情况下，这是不必要的。

X-Frame-Options Allow-From https://..。如果使用Content-Security-Policy报头，则会被替换(并被忽略)。

这里是完整的参考资料:https://content-security-policy.com/

I came across this issue when running a wordpress web site. I tried all sorts of things to fix it and wasn't sure how, ultimately the issue was because I was using DNS forwarding with masking, and the links to external sites were not being addressed properly. i.e. my site was hosted at http://123.456.789/index.html but was masked to run at http://somewebSite.com/index.html. When i entered http://123.456.789/index.html in the browser clicking on those same links resulted in no X-frame-origins issues in the JS console, but running http://somewebSite.com/index.html did. In order to properly mask you must add your host's DNS name servers to your domain service, i.e. godaddy.com should have name servers of example, ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com, if you were using digitalocean.com as your hosting service.

更新2019:您可以使用客户端JavaScript和我的X-Frame-Bypass Web组件绕过<iframe>中的X-Frame-Options。下面是一个演示:x帧旁路中的黑客新闻。(在Chrome和Firefox中测试。)