Added more details to mod-proxy-http2's doc

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1779578 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_proxy_http2.xml b/docs/manual/mod/mod_proxy_http2.xml
index d6bcae9aa24e3bc0d5adac58ca9ad2daf0a52b7f..710172401c8a1a29ffcf5e6a57f4ed52fdd8520b 100644 (file)
--- a/docs/manual/mod/mod_proxy_http2.xml
+++ b/docs/manual/mod/mod_proxy_http2.xml
@@ -41,9 +41,14 @@
     have to be present in the server.</p>
 
     <p><module>mod_proxy_http2</module> works with incoming requests
-    over HTTP/1.1 and HTTP/2 requests. If <module>mod_http2</module>
-    handles the frontend connection, requests against the same HTTP/2
-    backend are sent over a single connection, whenever possible.</p>
+    over HTTP/1.1 and HTTP/2 requests. In both cases, requests proxied
+    to the same backend are sent over a single connection
+    whenever possible (namely when the connection can be re-used).</p>
+
+    <p><module>mod_proxy_http2</module> will not use the HTTP/2 protocol
+    when the frontend requests use HTTP/1.1.
+    This means that HTTP/2 will be used to proxy requests to a capable backend
+    only when the frontend requests use the same protocol.</p>
 
     <p>This module relies on <a href="http://nghttp2.org/">libnghttp2</a>
     to provide the core http/2 engine.</p>