prioritize h2

Author: soundofspace

httpcore/_async/http_proxy.py

@@ -304,7 +304,7 @@ async def handle_async_request(self, request: Request) -> Response:
                     if self._ssl_context is None
                     else self._ssl_context
                 )
-                alpn_protocols = ["http/1.1", "h2"] if self._http2 else ["http/1.1"]
+                alpn_protocols = ["h2", "http/1.1"] if self._http2 else ["http/1.1"]
                 ssl_context.set_alpn_protocols(alpn_protocols)
 
                 kwargs = {