HTML 嵌入 iframe，并在 iframe 中引用自己，为什么没有循环递归出现

[xyok]

闲着无聊，试了一下，chrome能解析出两个页面，IE和Firefox只有一个

[yksoft1]

http://www.w3.org/TR/WD-frames-970331
Infinite Recursion

It is possible to design a FRAMESET that recurses infinitely, stacking the same FRAMESET inside itself until a machine runs out of memory. Consider this example:

<FRAMESET rows="50%,50%">
<FRAME src="parent_url">
<FRAME>
</FRAMESET>

Infinite recursion is prevented. Any frame that attempts to assign as its SRC a URL used by any of its ancestors is treated as if it has no SRC URL at all (basically a blank frame). This doesn't prevent all malicious documents, but it eliminates a troublesome class of them.