I try to embed a Mailchimp subscribe form in a twig template via:
<form action="https://my-company.us5.list-manage.com/subscribe/post?u=293f" method="post" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate> ... .... </form>
When I click the submit button, CraftCMS returns a 404 template not found. It probably has something to do with Routing: https://docs.craftcms.com/v3/routing.html
Any thoughts how to fix this?