I am trying add html in Form admin, into administration joomla, so I use Super User, Admin to add html into textarea field, but after save, all code is wiped out from the field. turn clean of codes.
I was go to joomla configutarion in text filter, and can confirm that Super user has no filter. And I add no filter to Public user too. I test again, and not work yet. html code is still wiped out. I go to seblod option, and can see that in "Forbidden Extensions in Archive/Content Files" is set to "none"