这是什么，而（1）在Gmail中做 [英] What does while(1) in Gmail do

问题描述

可能重复：
  为什么有＆ldquo;而（1）;＆rdquo;的在XmlHtt prequest回应？

如果你采取偷看在XHR POST请求的Gmail使得当它更新您的邮件列表中的服务器，你会看到，每个响应开头：

If you take a peek at the XHR POST requests that Gmail makes to the server when it updates the list of your email, you will see that each response starts with:

while(1);

[[["v","CKbPYpt__Vc.en.","8","d7634f09ff9e61c8"]
,["di",342]
,["ub",[["^i",1296218266987]
,["^f",1296218266987]
(...)

为什么谷歌开始与无限循环的每个反应？

Why does Google start each response with endless loop?

我看，这是一个安全的技巧 HTTP：//my.opera。 COM / hallvors /博客/ show.dml / 260127 ，但我不知道它是如何应该是一个很好的安全措施。

I read that it is a security trick http://my.opera.com/hallvors/blog/show.dml/260127 but I am not sure how it is supposed to be a good security measure.

推荐答案

以猜...因此，任何恶意的企图评估响应或指向一个＆LT;脚本＆GT; 块的资源，而不是正确地解析它，就会失败

Taking a guess... So that any malicious attempt to eval the response or point a <script> block at the resource, rather than parsing it properly, will fail.

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