Terraform backend configuration: implicit use of FQDN not documented

Terraform Providers Azure
1

Hi community :raising_hand_man:!

I would like to confirm a thought not explained on official documentation.

If I configure my azurerm backend this way, ie without specifying the subscription ID:

terraform {
backend “azurerm” {
resource_group_name = “StorageAccount-ResourceGroup”
storage_account_name = “abcd1234”
container_name = “tfstate”
key = “prod.terraform.tfstate”
}
}

It will work, because azurerm provider WILL USE THE FQDN (ie. http://abcd1234.blob.core.windows.net/tfstate/prod.terraform.tfstate in the example) to reach the container and blob place?

Thanks for your enlightment :bulb:!