How to clear url when going to checkout page?

Question

WooCommerce

Good afternoon, experts, tell me such a moment, I tied the button to add a product using the link
/checkout/?add-to-cart=5
, the redirect works, goes to the checkout page, the product is added, but when the product is deleted, this situation occurs, the product seems to be deleted, the page reloads at the current url ( /checkout/?add-to-cart=5 ), and it turns out the product is added again, a closed loop
Tell me the solution, thank you in advance