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Co-authored-by: Dan Lepow <[email protected]>

Author: Court72

articles/api-management/api-management-howto-mutual-certificates-for-clients.md

@@ -73,7 +73,7 @@ Configure the policy to validate one or more attributes including certificate is
 You can also create policy expressions with the [`context` variable](api-management-policy-expressions.md#ContextVariables) to check client certificates. Examples in the following sections show expressions using the `context.Request.Certificate` property and other `context` properties.
 
 > [!NOTE]
-> Mutual certificate authentication might not function correctly when the API management gateway endpoint is exposed through the Application Gateway. This is because Application Gateway functions as a Layer 7 load balancer, establishing a distinct SSL connection with the backend APIM service. Consequently, the certificate attached by the client in the initial HTTP request will not be forwarded to APIM. However, as a workaround,  you can transmit the certificate using the server variables option. For detailed instructions, refer to the Azure documentation: [`Mutual Authentication Server Variables`](https://learn.microsoft.com/en-us/azure/application-gateway/rewrite-http-headers-url#mutual-authentication-server-variables)
+> Mutual certificate authentication might not function correctly when the API Management gateway endpoint is exposed through the Application Gateway. This is because Application Gateway functions as a Layer 7 load balancer, establishing a distinct SSL connection with the backend API Management service. Consequently, the certificate attached by the client in the initial HTTP request will not be forwarded to APIM. However, as a workaround, you can transmit the certificate using the server variables option. For detailed instructions, refer to [Mutual Authentication Server Variables](../application-gateway/rewrite-http-headers-url.md#mutual-authentication-server-variables)
 
 > [!IMPORTANT]
 > * Starting May 2021, the `context.Request.Certificate` property only requests the certificate when the API Management instance's [`hostnameConfiguration`](/rest/api/apimanagement/current-ga/api-management-service/create-or-update#hostnameconfiguration) sets the `negotiateClientCertificate` property to True. By default, `negotiateClientCertificate` is set to False.