I'm having trouble confirming a subscription to a topic

I’m having trouble confirming a subscription to a topicLink to this anchor

When you create an HTTP or HTTPS subscription to a topic, this subscription will have a Pending status until you confirm it. This is essential to start receiving messages.

Problem: You don’t know how to confirm the subscriptionLink to this anchor

Ensure you have followed the steps outlined on our dedicated how-to page for confirming a subscription. You must retrieve the message Scaleway sent to your endpoint, and provide us with the SubscribeURL to confirm the subscription.

Problem: No message received from Scaleway to confirm the subscriptionLink to this anchor

You may find that you are not receiving the expected message from Scaleway (delivered as an HTTP POST request) sent to confirm the subscription.

The Scaleway POST request may not include an ORIGIN header. Ensure that your framework can receive a message without an origin header without triggering a 403 error, and retry.