Need PHP Help On Woo Commerce Function

I have a routine I have developed with the help of some experts and it worked great on my test site.  But now it won't write a message in the Order Notes box of Woo Commerce.  I am using 3.5.4 and that is what is on the test site too.

The function with the help of jquery writes a cookie which I can verify is written each time.  If the cookie is present then it is supposed to put the message "I Want Membership" in the order notes box.  On my XAMPP install it works perfectly but not on my live site.  I have copied all plugins with the exception of the ssl plugins since my test site isn't running as an ssl enabled site.

This is the jquery

<script type="text/javascript">

jQuery(function() {
		jQuery('#cook').click(function(e) {
		e.preventDefault();
		document.cookie = "wantmembership=1; path=/";
              jQuery(this).css('background-color','green');
              jQuery(this).text("I Now Have A Membership!");
			});
	
		
	});

</script>

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add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );
// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {

        //if (isset($_COOKIE['wantmembership'])) {
        if(isset($_COOKIE["wantmembership"]) && $_COOKIE["wantmembership"]== 1 ) {
//echo "found the cookie1";
    $fields['order']['order_comments']['default'] = 'I Want Membership';
        }
    return $fields;

}

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I can see the echo statement but the message is never written into the order comments box.

Can anyone see what is wrong with this function?