问题：
I have two websites, let's say they're example.com and anotherexample.net . 我有两个网站，假设他们是example.com和anotherexample.net 。 On anotherexample.net/page.html , I have an IFRAME SRC="http://example.com/someform.asp" . 在anotherexample.net/page.html ，我有一个IFRAME SRC="http://example.com/someform.asp" 。 That IFRAME displays a form for the user to fill out and submit to http://example.com/process.asp . IFRAME显示一个表单供用户填写并提交到http://example.com/process.asp 。 When I open the form (" someform.asp ") in its own browser window, all works well. 当我在自己的浏览器窗口中打开表单（“ someform.asp ”）时，一切正常。 However, when I load someform.asp as an IFRAME in IE 6 or IE 7, the cookies for example.com are not saved. 但是， 当我在IE 6或IE 7 someform.asp加载为IFRAME时，example.com的cookie不会保存。 In Firefox this problem doesn't appear. 在Firefox中，此问题不会出现。
For testing purposes, I've created a similar setup on http://newmoon.wz.cz/test/page.php . 出于测试目的，我在http://newmoon.wz.cz/test/page.php上创建了类似的设置。
example.com uses cookie-based sessions (and there's nothing I can do about that), so without cookies, process.asp won't execute. example.com使用基于cookie的会话（我无能为力），所以没有cookie， process.asp将不会执行。 How do I force IE to save those cookies? 如何强制IE保存这些cookie？
Results of sniffing the HTTP traffic: on GET /someform.asp response, there's a valid per-session Set-Cookie header (eg Set-Cookie: ASPKSJIUIUGF=JKHJUHVGFYTTYFY ), but on POST /process.asp request, there is no Cookie header at all. 嗅探HTTP流量的结果：在GET /someform.asp响应中，有一个有效的每会话Set-Cookie头（例如Set-Cookie: ASPKSJIUIUGF=JKHJUHVGFYTTYFY ），但在POST /process.asp请求中，没有Cookie头一点都不
Edit3: some AJAX+serverside scripting is apparently capable to sidestep the problem, but that looks very much like a bug, plus it opens a whole new set of security holes . Edit3：一些AJAX +服务器端脚本显然能够回避这个问题，但这看起来非常像一个bug，而且还会打开一组全新的安全漏洞 。 I don't want my applications to use a combination of bug+security hole just because it's easy. 我不希望我的应用程序使用bug +安全漏洞的组合只是因为它很容易。
Edit: the P3P policy was the root cause , full explanation below. 编辑： P3P政策是根本原因 ，下面有完整的解释。
解决方案：
参考一： https://en.stackoom.com/question/1dJY参考二： https://stackoom.com/question/1dJY