jreades is right. You are going to end up in an endless loop if you do it the way to are now. If the frameset page is the autohandler for the main component, the "frame src" tag will cause the browser to fetch the component from the server again which will invoke the same autohandler, and keep embedding frames inside frames ad infinitum.

So don't try to do framesets (client-side) as a mason autohandler (server-side).

If you must use framesets, then forget the autohandler for a moment, because the client needs to fetch the frameset separately from any embedded frames. So your referring link will need to point to the frameset, and the "frame src" tags will link the the content pages, which should NOT inherit from the frameset page.