Update troubleshooting-proxy-url.md

Author: DeCohen

CloudAppSecurityDocs/troubleshooting-proxy-url.md

@@ -45,7 +45,7 @@ So even though Fabrikam doesn't actually use Defender for Cloud Apps, they see t
 This kind of URL is expected and indicates that your organization applies extra security controls to protect business-critical data.
 
 > [!IMPORTANT]
-> Access and session policies support IPv4 only. If a request is made over IPv6, IP-based policy rules are not supported. This limitation applies to both reverse proxy and Edge in-browser protection.
+> Access and session policies support IPv4 only. If a request is made over IPv6, IP-based policy rules are not supported. This limitation applies when using both reverse proxy and Edge in-browser protection.
 
 They do this by using Defender for Cloud Apps, a solution for protecting your organization's cloud environment, to replace all relevant URLs, and cookies relating to cloud apps that you use.