I think the JS alert was caused by my ad blockers. When I turned off both uBlock Origin and Firefox’s built-in one, the request was sent to Mailchimp successfully. Have not received a confirmation though which might be related to the issue you mention.
I think the JS alert was caused by my ad blockers. When I turned off both uBlock Origin and Firefox’s built-in one, the request was sent to Mailchimp successfully. Have not received a confirmation though which might be related to the issue you mention.