It's not working on WordPress 4.3

I have this same problem. I fix it temporairly by rename file in wp-admin/js/ editor.min.js’ to __editor.min.js

Thanks a lot nitro2012pl! Your workaround does work for me. Did you notice any issue after this renaming?

no, ckeditor load normally
I don’t see any JS errors
One error is that website can’t load editor.min.js ?? but it’s renamed.

Hello, @nitro2012pl.
Good hint! It’s working now and no error for while.

I’m glad I could help. The simplest solutions are the best. ??

After renaming the file, you can’t switch from “Visual” tab to “Text” tab in the editor. But if someone is on the “Text” tab while you are renaming the file, he’s stuck: it’s not possible to switch back to “Visual” tab, even after clicking on “New Post”.
Anyway, as I want to leave the choice between a WYSIWYG editor and the html editor, I’ll try to find something else ??

Hi lucile!

This solution, suggested by nitro2012pl is temporary until a new update to be released.
You can use the “source” button, native CKEditor to view the HTML is the same function as the HTML tab.

Hi romarcio,
Thanks for your good suggestion, however, if a user is stuck in the HTML tab, he doesn’t have any way to return to the Visual tab ??
I’m sure that a solution will be found soon.

for time being it is better to deactivate CKeditor

Hi all,

Following the workaround given by nitro2012pl and the suggestion from romarcio, I have removed the tabs “HTML” and “Visual” from the editor, using this code inserted in the functions.php of my theme (code found here):

//Hide Post Page Options from ALL users
function hide_all_post_page_options() {
global $post;
$hide_all_post_options = "<style type=\"text/css\"> #content-html, #content-tmce { display: none !important; }</style>";
print($hide_all_post_options);
}
add_action( 'admin_head', 'hide_all_post_page_options'  );

So my users won’t be stuck in the “HTML” tab after the renaming of editor.min.js because this tab is not displayed anymore. Of course I’ll put my site on maintenance mode before doing the changes, so when my users will come back, they will only see the CKEditor toolbar, and they can use CKEditor Source button to switch to HTML.

Thanks nitro2012pl and romarcio!

And here is your real fix, for those of you not afraid of code.
https://github.com/ckeditor-for-wordpress/ckeditor-for-wordpress/issues/9

Thanks bap72190, it works perfectly!

4.5.3 has just been released, compatibility issue with WordPress 4.3 should be resolved. Kudos to @vokiel again.

Note: anyone interested in using this plugin. If you have access to PHP developers or if you code in PHP, please seriously consider participating in CKEditor extension development. There is a GitHub repository: https://github.com/ckeditor-for-wordpress/ckeditor-for-wordpress where you can submit pull requests.

If more people were involved, this issue would have been fixed faster.

Thanks a lot wiktor, the compatibility issue is indeed resolved with this update ??

Thanks a lot wiktor.
The 4.5.3 release is working perfectly.