application gateway | UUF | Update configuration-listeners.md

mbender-ms · web-flow · commit 1a55fae2a9e5 · 2025-06-16T16:24:41.000-05:00
Clarified HTTP2 support
diff --git a/articles/application-gateway/configuration-listeners.md b/articles/application-gateway/configuration-listeners.md
@@ -88,6 +88,8 @@ Set-AzApplicationGateway -ApplicationGateway $gw
 > [!IMPORTANT]
 > When creating an application gateway resource through the Azure portal, the default option for **HTTP2** is set as enabled. You can choose **Disabled** during creation, and re-enabled HTTP2 support using the Azure portal by selecting **Enabled** under **HTTP2** in **Application gateway > Configuration**.
 >
+> In instances where HTTP2 is not supported by a client, HTTP1.1 will be used. Enabling HTTP2 does not disable HTTP1.1; it allows support for both.
+>
 
 ### WebSocket support
 

Original file line number	Diff line number	Diff line change
`@@ -88,6 +88,8 @@ Set-AzApplicationGateway -ApplicationGateway $gw`
`88`	`88`	`> [!IMPORTANT]`
`89`	`89`	`> When creating an application gateway resource through the Azure portal, the default option for HTTP2 is set as enabled. You can choose Disabled during creation, and re-enabled HTTP2 support using the Azure portal by selecting Enabled under HTTP2 in Application gateway > Configuration.`
`90`	`90`	`>`
	`91`	`+> In instances where HTTP2 is not supported by a client, HTTP1.1 will be used. Enabling HTTP2 does not disable HTTP1.1; it allows support for both.`
	`92`	`+>`
`91`	`93`
`92`	`94`	`### WebSocket support`
`93`	`95`