inserted <iframe> code changes to <i-frame> - Joomla! Forum - community, help and support

version: 2.5.8

tryingto insert iframe code , no matter editor use, iframe code being altered..

eg: insert <iframe>code here</iframe>

on saving changes <i-frame>

done lot of googling , forum lookng , cannot find anything.

was working fine before, has changed , have no idea what.

anyone seen problem , have fix ?

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solution: issue caused upgrade of component: rsfirewall
it new security feature.

have tried using iframe wrapper menu item?