Wordpress 4.9.8 doesn't save if content has style="

Question

Wordpress 4.9.8 when I save a draft/publish return me an error:

    Gone

The requested resource
/wp-admin/post.php
is no longer available on this server and there is no forwarding address. Please remove all references to this resource.

I found that the problem is because my text has " style="bla bla bla" ". If I remove style= it works. I tried disabling all plugins, change to default theme, create a new installation, change PHP version from 5.6 to 7, 7.1, 7.2 : doesn't change.

Any ideas?

Answer 1

I've had the same issue recently.

Inline styles, as well as <img> tags, would cause the 410 Gone status and error message (The requested resource /wp-admin/post.php is no longer available on this server and there is no forwarding address. Please remove all references to this resource. upon previewing or publishing the post.

The problem was due to the hosting provider doing some maintenance on mod_security in cPanel.

I found out when I asked them for the Apache logs so that I could look into it more.

Contact your hosting provider to get this fixed.

Answer 2

SOLVED:
as @milo suggests, I found solution disabling mod_security under cPanel. So I ask to my hoster (register.it) if there was some problem. They confirm me that servers are under updating security stuff and to disable and then re-able mod_security in CPanel. After that, post.php works properly.

Thank you all.

Answer 3

in general it's not a good idea to insert inline styles.

try with a CSS class and add your custom CSS to your theme.