Load code site wide header

[Habib01]

Finally, click the “Save Snippet” button at the top to save your custom code.

So, don’t forget to activate the snippet by moving the switch to “Active”.

Save snippet
Using WPCode to properly queue your scripts ensures that jQuery loads in the correct order. If this was the main issue, this should fix the error.

5. Edit wp-config.php to fix jQuery loading issues
If other methods haven’t worked, editing the filewp-config.php can be helpful to control how WordPress handles script loading.

This method is useful if script concatenation or file path issues are causing the “jQuery is not defined” error.

Here's how to apply this method:

First, access the file wp-config.php. You can do this using an FTP client like benin telemarketing data FileZilla or by accessing the file manager of your hosted control panel.

The file wp-config.phpis located in the root directory of your WordPress installation (usually in the public_html) folder.

Once you have located the file, open it for editing and add the following code just before the line that says /* Questo è tutto, smettete di modificare! Buon blogging. */:

/** Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
define('ABSPATH', dirname(FILE) . '/');
define('CONCATENATE_SCRIPTS', false);
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Here's what this code does: