You can configure your storage account to accept requests from secure connections only by setting the Secure transfer required property for the storage account. When you require secure transfer, any requests originating from an insecure connection are rejected. Microsoft recommends that you always require secure transfer for all of your storage accounts.
When secure transfer is required, a call to an Azure Storage REST API operation must be made over HTTPS. Any request made over HTTP is rejected.
Reference:
https://docs.microsoft.com/en-us/azure/storage/common/storage-require-secure-transfer