Hi,
I have same problem, and have found the solution.
In my theme have this file:
require get_template_directory().’/inc/admin-panel/theme-options.php’;
In this, look for js enqueue script, in my case ex:
_enqueue_script( ‘custom_js’, get_template_directory_uri().’/inc/admin-panel/js/custom.js’, array(‘jquery’) );
In the custom.js look for simliar code ex:
if ( typeof(localStorage) != ‘undefined’ ) {
active_tab = localStorage.getItem(“active_tab”);
}
Comment it, test if the error disappears.
Greetings, and thnx