I'm working with WordPress 4.9.6 and i have a problem for 2 days...
I can't save any post if there is the html tag inside with editor or not, i mean
<html>. If i try to save, i have an error page not found.
I can write other html tags with no problem, it's only the html one wich give me difficulties...
I have tried :
- disable every plugins
- Save my permalink again...
- Change the version of PHP (i work with O2Switch with PHP 7.2)
Can anyone help me ?