I created a simple HTML page with an iframe whose src attribute references the containing page -- in other words a self-referencing iframe.
I'd like to add a little something to the "Also, why doesn't even IE crash at this?" part of the question. IE does not let us down...
If you add a simple iteration number as a query string to the nested iFrame's src Firefox and others will just stop after a certain iteration depth. IE - and we tested this with IE version 10 - just crashes :)
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