Frontdoor rule not accepting cache_duration null value

[sudeep1607]

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Terraform Version

1.3.4

AzureRM Provider Version

3.31.0

Affected Resource(s)/Data Source(s)

azurerm_cdn_frontdoor_rule

Terraform Configuration Files

+ resource "azurerm_cdn_frontdoor_rule" "frontdoor_rule" {
      + behavior_on_match           = "Continue"
      + cdn_frontdoor_rule_set_id   = "/subscriptions/..........."
      + cdn_frontdoor_rule_set_name = (known after apply)
      + id                          = (known after apply)
      + name                        = "ignoreString"
      + order                       = 0

      + actions {

          + route_configuration_override_action {
              + cache_behavior                = "HonorOrigin"
              + compression_enabled           = true
              + query_string_caching_behavior = "IgnoreQueryString"
            }
        }

      + conditions {

          + url_path_condition {
              + match_values     = [
                  + "data/",
                ]
              + negate_condition = false
              + operator         = "BeginsWith"
            }
          + url_path_condition {
              + match_values     = [
                  + ".html",
                ]
              + negate_condition = false
              + operator         = "EndsWith"
            }
        }
    }

Debug Output/Panic Output

Error: creating Front Door Rule: (Rule Name "ignoreString" / Rule Set Name "cacheRequests" / Profile Name "xyzzy-profile" / Resource Group "xyzzy-rg"): cdn.RulesClient#Create: Failure sending request: StatusCode=400 -- Original Error: Code="BadRequest" Message="Cache duration must be null for honor origin behavior."

Expected Behaviour

Should be able to create the rule when cache_duration value is set as null

Actual Behaviour

Getting the mentioned error above

Steps to Reproduce

1. Create a rule using auzrerm_cdn_frontdoor_rule with route_configuration_override_action configured with cache behaviour as HonorOrigin and cache duration as null
2. terraform plan
3. terraform apply

Important Factoids

No response

References

No response

[github-actions]

This functionality has been released in v3.33.0 of the Terraform Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.