不，你不能因为SOP（同源政策） http://en.wikipedia.org / wiki / Same-origin_policy

No you can't becouse of SOP (Same Origin Policy) http://en.wikipedia.org/wiki/Same-origin_policy

举个例子：
您可以使用登录信息弹出一个网页。使用您的方法，您可以跟踪登录信息的键输入。用户名和密码。那将是一个重大的安全问题。

To give you an example: You make a popup to a webpage with a login. With your method you are able to track the key input of the login information. username and password. Thats would be a major secutiry issue.