Why can the web page be displayed in frames even after using WBOY Release： 2016-06-24 12:19:15 Original 736 people have browsed it

Why can the web page be displayed in frames even after using

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There is no such attribute. . Tests on ie5.5~ie8, firefox, and chrome are useless

Prevent the framework from using js

<script>    if (top != self) top.location = self.location;</script>

Baidu checked and said it has this function, but there is no response