I can not change editor in the Joomla configuration. The modofication is taken into account, in the configuration file, I have the line "public $ editor = 'none';" but in the articles it's always JCE that appears.
I do not know if it comes from JCE or Joomla.
I desist JCE to have the editor No WIXYWIG.
Whatever the editor, I can not insert a line of code. For example: <p> <iframe src = "https://www.youtube.com/embed/APhBGc-DHog?rel=1" width = "560" height = "315" frameborder = "0" allowfullscreen = "allowfullscreen "> </ iframe> </ p>.
Thanks for your help