Merge pull request #302726 from Miskatonic-Electronic/patch-60

Update application-gateway-waf-metrics.md

Author: prmerger-automator[bot]

articles/web-application-firewall/ag/application-gateway-waf-metrics.md

@@ -41,12 +41,14 @@ New WAF metrics are only available for Core Rule Set 3.2 or greater, or with bot
 |**WAF Managed Rule Matches**|Count of total managed rule matches| Action, Country/Region, Mode, Policy Name, Policy Scope, Rule Group, Rule ID, Rule Set Name|
 |**WAF Custom Rule Matches**|Count of custom rule matches| Action, Country/Region, Mode, Policy Name, Policy Scope, Rule Name|
 |**WAF Bot Protection Matches**<sup>1</sup>|Count of total bot protection rule matches that have been blocked or logged from malicious IP addresses. The IP addresses are sourced from the Microsoft Threat Intelligence feed.| Action, Country/Region, Bot Type, Mode, Policy Name, Policy Scope|
-|**WAF JS Challenge Request Count**|Count the number of requests that match JS Challenge WAF rules.|Action, Policy Name, Policy Scope, Rule<sup>2</sup>|
+|**WAF JS Challenge Request Count**<sup>3</sup>|Count the number of requests that match JS Challenge WAF rules.|Action, Policy Name, Policy Scope, Rule<sup>2</sup>|
 
 <sup>1</sup> Only Bot Manager Rule Set 0.1 will be displayed under “WAF Bot Protection Matches”. Requests matching Bot Manager Rule Set 1.0 will increase “WAF Total Requests” metrics, not “WAF Bot Protection Matches”.
 
 <sup>2</sup> Rule name for custom rules and Rule ID for the Bot Manager Rule Set.
 
+<sup>3</sup> Application Gateway for Containers WAF does not support JavaScript challenge in preview.
+
 For metrics supported by Application Gateway V2 SKU, see [Application Gateway v2 metrics](../../application-gateway/application-gateway-metrics.md#metrics-supported-by-application-gateway-v2-sku)
 
 ## Application Gateway WAF v1 Metrics