diff --git a/actix-http-test/src/lib.rs b/actix-http-test/src/lib.rs
index a4bc6b2bb..7f55a0bf4 100644
--- a/actix-http-test/src/lib.rs
+++ b/actix-http-test/src/lib.rs
@@ -21,16 +21,15 @@ use http::Method;
 use socket2::{Domain, Protocol, Socket, Type};
 use tokio::sync::mpsc;
 
-/// Start test server
+/// Start test server.
 ///
-/// `TestServer` is very simple test server that simplify process of writing
-/// integration tests cases for actix web applications.
+/// `TestServer` is very simple test server that simplify process of writing integration tests cases
+/// for HTTP applications.
 ///
 /// # Examples
-///
-/// ```
+/// ```no_run
 /// use actix_http::HttpService;
-/// use actix_http_test::TestServer;
+/// use actix_http_test::test_server;
 /// use actix_web::{web, App, HttpResponse, Error};
 ///
 /// async fn my_handler() -> Result<HttpResponse, Error> {
@@ -39,10 +38,9 @@ use tokio::sync::mpsc;
 ///
 /// #[actix_web::test]
 /// async fn test_example() {
-///     let mut srv = TestServer::start(
-///         || HttpService::new(
-///             App::new().service(
-///                 web::resource("/").to(my_handler))
+///     let mut srv = TestServer::start(||
+///         HttpService::new(
+///             App::new().service(web::resource("/").to(my_handler))
 ///         )
 ///     );
 ///
diff --git a/awc/src/client/connector.rs b/awc/src/client/connector.rs
index 3fe4e06b7..54778d31e 100644
--- a/awc/src/client/connector.rs
+++ b/awc/src/client/connector.rs
@@ -67,9 +67,9 @@ impl Connector<()> {
             > + Clone,
     > {
         Connector {
-            ssl: Self::build_ssl(vec![b"h2".to_vec(), b"http/1.1".to_vec()]),
             connector: new_connector(resolver::resolver()),
             config: ConnectorConfig::default(),
+            ssl: Self::build_ssl(vec![b"h2".to_vec(), b"http/1.1".to_vec()]),
         }
     }
 
@@ -189,7 +189,7 @@ where
             http::Version::HTTP_11 => vec![b"http/1.1".to_vec()],
             http::Version::HTTP_2 => vec![b"h2".to_vec(), b"http/1.1".to_vec()],
             _ => {
-                unimplemented!("actix-http:client: supported versions http/1.1, http/2")
+                unimplemented!("actix-http client only supports versions http/1.1 & http/2")
             }
         };
         self.ssl = Connector::build_ssl(versions);
@@ -816,3 +816,42 @@ mod resolver {
         })
     }
 }
+
+#[cfg(feature = "dangerous-h2c")]
+#[cfg(test)]
+mod tests {
+    use std::convert::Infallible;
+
+    use actix_http::{HttpService, Request, Response, Version};
+    use actix_http_test::test_server;
+    use actix_service::ServiceFactoryExt as _;
+
+    use super::*;
+    use crate::Client;
+
+    #[actix_rt::test]
+    async fn h2c_connector() {
+        let mut srv = test_server(|| {
+            HttpService::build()
+                .h2(|_req: Request| async { Ok::<_, Infallible>(Response::ok()) })
+                .tcp()
+                .map_err(|_| ())
+        })
+        .await;
+
+        let connector = Connector {
+            connector: new_connector(resolver::resolver()),
+            config: ConnectorConfig::default(),
+            ssl: SslConnector::None,
+        };
+
+        let client = Client::builder().connector(connector).finish();
+
+        let request = client.get(srv.surl("/")).send();
+        let response = request.await.unwrap();
+        assert!(response.status().is_success());
+        assert_eq!(response.version(), Version::HTTP_2);
+
+        srv.stop().await;
+    }
+}
diff --git a/awc/src/request.rs b/awc/src/request.rs
index bc3859e2e..f364b43c7 100644
--- a/awc/src/request.rs
+++ b/awc/src/request.rs
@@ -115,10 +115,10 @@ impl ClientRequest {
         &self.head.method
     }
 
-    #[doc(hidden)]
     /// Set HTTP version of this request.
     ///
     /// By default requests's HTTP version depends on network stream
+    #[doc(hidden)]
     #[inline]
     pub fn version(mut self, version: Version) -> Self {
         self.head.version = version;
diff --git a/awc/tests/test_connector.rs b/awc/tests/test_connector.rs
index 632f68b72..588c51463 100644
--- a/awc/tests/test_connector.rs
+++ b/awc/tests/test_connector.rs
@@ -39,7 +39,7 @@ fn tls_config() -> SslAcceptor {
 
 #[actix_rt::test]
 async fn test_connection_window_size() {
-    let srv = test_server(move || {
+    let srv = test_server(|| {
         HttpService::build()
             .h2(map_config(
                 App::new().service(web::resource("/").route(web::to(HttpResponse::Ok))),