Title: Visual Editor not functioning
Last modified: August 20, 2016

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# Visual Editor not functioning

 *  Resolved [CSWG](https://wordpress.org/support/users/cswg/)
 * (@cswg)
 * [13 years, 5 months ago](https://wordpress.org/support/topic/visual-editor-not-functioning-2/)
 * After allowing my site to be automatically upgraded to v3.5, the visual editor
   isn’t working properly.
 * When editing an already saved draft, it does not show any of the text. When I
   select the Text editor, I can see the text. But then I can’t go back to the visual
   editor.
 * When creating a new post, it is automatically in the Visual Editor, but doesn’t
   allow you to actually type anything in. After going to the Text editor, it won’t
   go back to the visual editor.
 * I followed the debugging steps (disabling all plugins, changing themes, trying
   different browsers, clearing the browser’s caches, etc) in
    [http://wordpress.org/support/topic/troubleshooting-wordpress-35-master-list?replies=4](http://wordpress.org/support/topic/troubleshooting-wordpress-35-master-list?replies=4)
 * That did not solve it.
 * I enabled script debugging, which did resolve it. So I turned it back off, and
   the errors I’m seeing are:
    1) Uncaught TypeError: Cannot call method ‘add’ of
   undefined post.php:1388 2) Uncaught TypeError: Cannot read property ‘canvas’ 
   of undefined load-scripts.php:6 3) Uncaught TypeError: Cannot call method ‘add’
   of undefined post-new.php:1299
 * I can tell that the errors with the add method have to do with tinymce (though
   I don’t know how to resolve), and I don’t have even a clue about the canvas property.
 * Can I get some help in resolving these errors?
 * Thank you.

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [13 years, 5 months ago](https://wordpress.org/support/topic/visual-editor-not-functioning-2/#post-3315077)
 * -Try adding this to the wp-config.php: define(‘CONCATENATE_SCRIPTS’, false); 
   to the bottom of your wp-config.php file (just before the require_once line).
   First, make sure that your browser has JavaScript enabled.
    Codex: [http://codex.wordpress.org/Editing_wp-config.php#Disable_Javascript_Concatenation](http://codex.wordpress.org/Editing_wp-config.php#Disable_Javascript_Concatenation)
 *  [alisaleem252](https://wordpress.org/support/users/alisaleem252/)
 * (@alisaleem252)
 * [13 years, 5 months ago](https://wordpress.org/support/topic/visual-editor-not-functioning-2/#post-3315211)
 * Thank you t-p
    define(‘CONCATENATE_SCRIPTS’, false); worked for me.
 * Regards
    Ali
 *  Moderator [t-p](https://wordpress.org/support/users/t-p/)
 * (@t-p)
 * [13 years, 5 months ago](https://wordpress.org/support/topic/visual-editor-not-functioning-2/#post-3315212)
 * You are welcome. 🙂
 *  Thread Starter [CSWG](https://wordpress.org/support/users/cswg/)
 * (@cswg)
 * [13 years, 5 months ago](https://wordpress.org/support/topic/visual-editor-not-functioning-2/#post-3315310)
 * Thank you t-p, This resolved the problem for me. I really appreciate your help.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Visual Editor not functioning’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 3 participants
 * Last reply from: [CSWG](https://wordpress.org/support/users/cswg/)
 * Last activity: [13 years, 5 months ago](https://wordpress.org/support/topic/visual-editor-not-functioning-2/#post-3315310)
 * Status: resolved

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