Hello.
I'm trying to insert some jQuery code in Checkout Settings>Checkout Script but, when I click on "Save js" button, an alert popup says "errorerror".
I don't know why.
A dummy code that I tried to insert was:
jQuery(document).ready(function() {
jQuery("#billing_first_name_field").addClass("secondxxx");
});Any ideas?
Thank you.
https://wordpress.org/plugins/woocommerce-poor-guys-swiss-knife/