Enabling HTTPS for Azure CDN custom domain returns error (InvalidResource)

This is autogenerated. Please review and update as needed.

Describe the bug

Command Name az cdn custom-domain enable-https

Errors:

InvalidResource - The resource format is invalid.

To Reproduce:

Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

• Azure DNS zone exists and CNAME record from there points to Azure CDN endpoint
• Following script used

#!/bin/bash

set -e

CDN_ENDPOINT_NAME=$1
CDN_PROFILE_NAME=$2
RESOURCE_GROUP_NAME=$3
CDN_CUSTOM_DOMAIN_HOSTNAME=$4

# Check the mapping
CUSTOM_DOMAIN_VALIDATED=$(az cdn endpoint validate-custom-domain --host-name $CDN_CUSTOM_DOMAIN_HOSTNAME -n $CDN_ENDPOINT_NAME --profile-name $CDN_PROFILE_NAME -g $RESOURCE_GROUP_NAME --query customDomainValidated -o tsv)

# Create the custom domain on the endpoint
if [ $CUSTOM_DOMAIN_VALIDATED ]; then
    az cdn custom-domain create \
    --endpoint-name $CDN_ENDPOINT_NAME \
    --hostname $CDN_CUSTOM_DOMAIN_HOSTNAME \
    -n CDN \
    --profile-name $CDN_PROFILE_NAME \
    -g $RESOURCE_GROUP_NAME
fi

# Enable custom domain HTTPS
az cdn custom-domain enable-https \
    --endpoint-name $CDN_ENDPOINT_NAME \
    -n CDN \
    --profile-name $CDN_PROFILE_NAME \
    -g $RESOURCE_GROUP_NAME

Expected Behavior

Azure would begin enabling HTTPS for the custom domain in Azure CDN endpoint.

Similar works from PowerShell core command

# Enable custom domain HTTPS Enable-AzCdnCustomDomainHttps -EndpointName $EndpointName -ProfileName $ProfileName -ResourceGroupName $rgName -CustomDomainName CDN

Environment Summary

Linux-4.4.0-18362-Microsoft-x86_64-with-debian-buster-sid
Python 3.6.5
Shell: bash

azure-cli 2.0.81 *

Additional Context

Creation of custom domain for Azure CDN endpoint works fine. Only the last part fails.

[sseveringhaus-newclassrooms]

This issue apparently still exists with version 2.1.0.

[highlyunavailable]

I’m also seeing this issue with a raw az rest call to https://management.azure.com/subscriptions/[redacted]/resourceGroups/[redacted]/providers/Microsoft.Cdn/profiles/[redacted]/endpoints/[redacted]/customdomains/[redacted]/enableCustomHttps?api-version=2019-04-15