diff --git a/src/server/builder.rs b/src/server/builder.rs
index c9a97af3e..8e7f82f80 100644
--- a/src/server/builder.rs
+++ b/src/server/builder.rs
@@ -1,4 +1,3 @@
-use std::marker::PhantomData;
 use std::{fmt, net};
 
 use actix_net::either::Either;
@@ -9,61 +8,39 @@ use super::acceptor::{
     AcceptorServiceFactory, AcceptorTimeout, ServerMessageAcceptor, TcpAcceptor,
 };
 use super::error::AcceptorError;
-use super::handler::{HttpHandler, IntoHttpHandler};
+use super::handler::IntoHttpHandler;
 use super::service::HttpService;
 use super::settings::{ServerSettings, WorkerSettings};
-use super::{IoStream, KeepAlive};
+use super::KeepAlive;
 
 pub(crate) trait ServiceProvider {
     fn register(
-        &self, server: Server, lst: net::TcpListener, host: Option<String>,
+        &self, server: Server, lst: net::TcpListener, host: String,
         addr: net::SocketAddr, keep_alive: KeepAlive, client_timeout: usize,
     ) -> Server;
 }
 
 /// Utility type that builds complete http pipeline
-pub struct HttpServiceBuilder<F, H, A, P>
+pub struct HttpServiceBuilder<F, H, A>
 where
     F: Fn() -> H + Send + Clone,
 {
     factory: F,
     acceptor: A,
-    pipeline: P,
     no_client_timer: bool,
 }
 
-impl<F, H, A, Io> HttpServiceBuilder<F, H, A, DefaultPipelineFactory<H::Handler, Io>>
-where
-    Io: IoStream + Send,
-    F: Fn() -> H + Send + Clone + 'static,
-    H: IntoHttpHandler,
-    A: AcceptorServiceFactory,
-    <A::NewService as NewService>::InitError: fmt::Debug,
-{
-    /// Create http service builder with default pipeline factory
-    pub fn with_default_pipeline(factory: F, acceptor: A) -> Self {
-        Self {
-            factory,
-            acceptor,
-            pipeline: DefaultPipelineFactory::new(),
-            no_client_timer: false,
-        }
-    }
-}
-
-impl<F, H, A, P> HttpServiceBuilder<F, H, A, P>
+impl<F, H, A> HttpServiceBuilder<F, H, A>
 where
     F: Fn() -> H + Send + Clone + 'static,
     H: IntoHttpHandler,
     A: AcceptorServiceFactory,
     <A::NewService as NewService>::InitError: fmt::Debug,
-    P: HttpPipelineFactory<H::Handler, Io = A::Io>,
 {
     /// Create http service builder
-    pub fn new(factory: F, acceptor: A, pipeline: P) -> Self {
+    pub fn new(factory: F, acceptor: A) -> Self {
         Self {
             factory,
-            pipeline,
             acceptor,
             no_client_timer: false,
         }
@@ -75,34 +52,20 @@ where
     }
 
     /// Use different acceptor factory
-    pub fn acceptor<A1>(self, acceptor: A1) -> HttpServiceBuilder<F, H, A1, P>
+    pub fn acceptor<A1>(self, acceptor: A1) -> HttpServiceBuilder<F, H, A1>
     where
         A1: AcceptorServiceFactory,
         <A1::NewService as NewService>::InitError: fmt::Debug,
     {
         HttpServiceBuilder {
             acceptor,
-            pipeline: self.pipeline,
-            factory: self.factory.clone(),
-            no_client_timer: self.no_client_timer,
-        }
-    }
-
-    /// Use different pipeline factory
-    pub fn pipeline<P1>(self, pipeline: P1) -> HttpServiceBuilder<F, H, A, P1>
-    where
-        P1: HttpPipelineFactory<H::Handler>,
-    {
-        HttpServiceBuilder {
-            pipeline,
-            acceptor: self.acceptor,
             factory: self.factory.clone(),
             no_client_timer: self.no_client_timer,
         }
     }
 
     fn finish(
-        &self, host: Option<String>, addr: net::SocketAddr, keep_alive: KeepAlive,
+        &self, host: String, addr: net::SocketAddr, keep_alive: KeepAlive,
         client_timeout: usize,
     ) -> impl ServiceFactory {
         let timeout = if self.no_client_timer {
@@ -111,7 +74,6 @@ where
             client_timeout
         };
         let factory = self.factory.clone();
-        let pipeline = self.pipeline.clone();
         let acceptor = self.acceptor.clone();
         move || {
             let app = (factory)().into_handler();
@@ -119,7 +81,7 @@ where
                 app,
                 keep_alive,
                 timeout as u64,
-                ServerSettings::new(Some(addr), &host, false),
+                ServerSettings::new(addr, &host, false),
             );
 
             if timeout == 0 {
@@ -129,8 +91,7 @@ where
                         .map_err(|_| ())
                         .map_init_err(|_| ())
                         .and_then(
-                            pipeline
-                                .create(settings)
+                            HttpService::new(settings)
                                 .map_init_err(|_| ())
                                 .map_err(|_| ()),
                         ),
@@ -142,8 +103,7 @@ where
                         .map_err(|_| ())
                         .map_init_err(|_| ())
                         .and_then(
-                            pipeline
-                                .create(settings)
+                            HttpService::new(settings)
                                 .map_init_err(|_| ())
                                 .map_err(|_| ()),
                         ),
@@ -153,33 +113,30 @@ where
     }
 }
 
-impl<F, H, A, P> Clone for HttpServiceBuilder<F, H, A, P>
+impl<F, H, A> Clone for HttpServiceBuilder<F, H, A>
 where
     F: Fn() -> H + Send + Clone,
     H: IntoHttpHandler,
     A: AcceptorServiceFactory,
-    P: HttpPipelineFactory<H::Handler, Io = A::Io>,
 {
     fn clone(&self) -> Self {
         HttpServiceBuilder {
             factory: self.factory.clone(),
             acceptor: self.acceptor.clone(),
-            pipeline: self.pipeline.clone(),
             no_client_timer: self.no_client_timer,
         }
     }
 }
 
-impl<F, H, A, P> ServiceProvider for HttpServiceBuilder<F, H, A, P>
+impl<F, H, A> ServiceProvider for HttpServiceBuilder<F, H, A>
 where
     F: Fn() -> H + Send + Clone + 'static,
     A: AcceptorServiceFactory,
     <A::NewService as NewService>::InitError: fmt::Debug,
-    P: HttpPipelineFactory<H::Handler, Io = A::Io>,
     H: IntoHttpHandler,
 {
     fn register(
-        &self, server: Server, lst: net::TcpListener, host: Option<String>,
+        &self, server: Server, lst: net::TcpListener, host: String,
         addr: net::SocketAddr, keep_alive: KeepAlive, client_timeout: usize,
     ) -> Server {
         server.listen2(
@@ -189,64 +146,3 @@ where
         )
     }
 }
-
-pub trait HttpPipelineFactory<H: HttpHandler>: Send + Clone + 'static {
-    type Io: IoStream;
-    type NewService: NewService<Request = Self::Io, Response = ()>;
-
-    fn create(&self, settings: WorkerSettings<H>) -> Self::NewService;
-}
-
-impl<F, T, H> HttpPipelineFactory<H> for F
-where
-    F: Fn(WorkerSettings<H>) -> T + Send + Clone + 'static,
-    T: NewService<Response = ()>,
-    T::Request: IoStream,
-    H: HttpHandler,
-{
-    type Io = T::Request;
-    type NewService = T;
-
-    fn create(&self, settings: WorkerSettings<H>) -> T {
-        (self)(settings)
-    }
-}
-
-pub(crate) struct DefaultPipelineFactory<H, Io> {
-    _t: PhantomData<(H, Io)>,
-}
-
-unsafe impl<H, Io> Send for DefaultPipelineFactory<H, Io> {}
-
-impl<H, Io> DefaultPipelineFactory<H, Io>
-where
-    Io: IoStream + Send,
-    H: HttpHandler + 'static,
-{
-    pub fn new() -> Self {
-        Self { _t: PhantomData }
-    }
-}
-
-impl<H, Io> Clone for DefaultPipelineFactory<H, Io>
-where
-    Io: IoStream,
-    H: HttpHandler,
-{
-    fn clone(&self) -> Self {
-        Self { _t: PhantomData }
-    }
-}
-
-impl<H, Io> HttpPipelineFactory<H> for DefaultPipelineFactory<H, Io>
-where
-    Io: IoStream,
-    H: HttpHandler + 'static,
-{
-    type Io = Io;
-    type NewService = HttpService<H, Io>;
-
-    fn create(&self, settings: WorkerSettings<H>) -> Self::NewService {
-        HttpService::new(settings)
-    }
-}
diff --git a/src/server/channel.rs b/src/server/channel.rs
index c1e6b6b24..3cea291fd 100644
--- a/src/server/channel.rs
+++ b/src/server/channel.rs
@@ -6,6 +6,7 @@ use futures::{Async, Future, Poll};
 use tokio_io::{AsyncRead, AsyncWrite};
 use tokio_timer::Delay;
 
+use super::error::HttpDispatchError;
 use super::settings::WorkerSettings;
 use super::{h1, h2, HttpHandler, IoStream};
 
@@ -86,7 +87,7 @@ where
     H: HttpHandler + 'static,
 {
     type Item = ();
-    type Error = ();
+    type Error = HttpDispatchError;
 
     fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
         // keep-alive timer
@@ -127,6 +128,7 @@ where
                 return h2.poll();
             }
             Some(HttpProtocol::Unknown(_, _, ref mut io, ref mut buf)) => {
+                let mut err = None;
                 let mut disconnect = false;
                 match io.read_available(buf) {
                     Ok(Async::Ready((read_some, stream_closed))) => {
@@ -136,14 +138,16 @@ where
                             disconnect = true;
                         }
                     }
-                    Err(_) => {
-                        disconnect = true;
+                    Err(e) => {
+                        err = Some(e.into());
                     }
                     _ => (),
                 }
                 if disconnect {
                     debug!("Ignored premature client disconnection");
-                    return Err(());
+                    return Ok(Async::Ready(()));
+                } else if let Some(e) = err {
+                    return Err(e);
                 }
 
                 if buf.len() >= 14 {
diff --git a/src/server/error.rs b/src/server/error.rs
index ff8b831a7..b8b602266 100644
--- a/src/server/error.rs
+++ b/src/server/error.rs
@@ -1,6 +1,7 @@
 use std::io;
 
 use futures::{Async, Poll};
+use http2;
 
 use super::{helpers, HttpHandlerTask, Writer};
 use http::{StatusCode, Version};
@@ -19,6 +20,39 @@ pub enum AcceptorError<T> {
     Timeout,
 }
 
+#[derive(Fail, Debug)]
+/// A set of errors that can occur during dispatching http requests
+pub enum HttpDispatchError {
+    /// Application error
+    #[fail(display = "Application specific error")]
+    AppError,
+
+    /// An `io::Error` that occurred while trying to read or write to a network
+    /// stream.
+    #[fail(display = "IO error: {}", _0)]
+    Io(io::Error),
+
+    /// The first request did not complete within the specified timeout.
+    #[fail(display = "The first request did not complete within the specified timeout")]
+    SlowRequestTimeout,
+
+    /// HTTP2 error
+    #[fail(display = "HTTP2 error: {}", _0)]
+    Http2(http2::Error),
+}
+
+impl From<io::Error> for HttpDispatchError {
+    fn from(err: io::Error) -> Self {
+        HttpDispatchError::Io(err)
+    }
+}
+
+impl From<http2::Error> for HttpDispatchError {
+    fn from(err: http2::Error) -> Self {
+        HttpDispatchError::Http2(err)
+    }
+}
+
 pub(crate) struct ServerError(Version, StatusCode);
 
 impl ServerError {
diff --git a/src/server/h1.rs b/src/server/h1.rs
index 76c0d4b6e..b17981225 100644
--- a/src/server/h1.rs
+++ b/src/server/h1.rs
@@ -10,7 +10,7 @@ use error::{Error, PayloadError};
 use http::{StatusCode, Version};
 use payload::{Payload, PayloadStatus, PayloadWriter};
 
-use super::error::ServerError;
+use super::error::{HttpDispatchError, ServerError};
 use super::h1decoder::{DecoderError, H1Decoder, Message};
 use super::h1writer::H1Writer;
 use super::input::PayloadType;
@@ -172,7 +172,7 @@ where
     }
 
     #[inline]
-    pub fn poll(&mut self) -> Poll<(), ()> {
+    pub fn poll(&mut self) -> Poll<(), HttpDispatchError> {
         // check connection keep-alive
         if !self.poll_keep_alive() {
             return Ok(Async::Ready(()));
@@ -190,7 +190,7 @@ where
                 Ok(Async::Ready(_)) => return Ok(Async::Ready(())),
                 Err(err) => {
                     debug!("Error sending data: {}", err);
-                    return Err(());
+                    return Err(err.into());
                 }
             }
         }
@@ -303,7 +303,7 @@ where
         }
     }
 
-    pub fn poll_handler(&mut self) -> Poll<bool, ()> {
+    pub fn poll_handler(&mut self) -> Poll<bool, HttpDispatchError> {
         let retry = self.can_read();
 
         // check in-flight messages
@@ -321,7 +321,7 @@ where
                         return Ok(Async::NotReady);
                     }
                     self.flags.insert(Flags::ERROR);
-                    return Err(());
+                    return Err(HttpDispatchError::AppError);
                 }
 
                 match self.tasks[idx].pipe.poll_io(&mut self.stream) {
@@ -404,7 +404,7 @@ where
                     debug!("Error sending data: {}", err);
                     self.read_disconnected();
                     self.write_disconnected();
-                    return Err(());
+                    return Err(err.into());
                 }
                 Ok(Async::Ready(_)) => {
                     // non consumed payload in that case close connection
diff --git a/src/server/h2.rs b/src/server/h2.rs
index d9ca2f64a..589e77c2d 100644
--- a/src/server/h2.rs
+++ b/src/server/h2.rs
@@ -19,7 +19,7 @@ use http::{StatusCode, Version};
 use payload::{Payload, PayloadStatus, PayloadWriter};
 use uri::Url;
 
-use super::error::ServerError;
+use super::error::{HttpDispatchError, ServerError};
 use super::h2writer::H2Writer;
 use super::input::PayloadType;
 use super::settings::WorkerSettings;
@@ -86,7 +86,7 @@ where
         &self.settings
     }
 
-    pub fn poll(&mut self) -> Poll<(), ()> {
+    pub fn poll(&mut self) -> Poll<(), HttpDispatchError> {
         // server
         if let State::Connection(ref mut conn) = self.state {
             // keep-alive timer
@@ -244,9 +244,7 @@ where
                                     }
                                 } else {
                                     // keep-alive disable, drop connection
-                                    return conn.poll_close().map_err(|e| {
-                                        error!("Error during connection close: {}", e)
-                                    });
+                                    return conn.poll_close().map_err(|e| e.into());
                                 }
                             } else {
                                 // keep-alive unset, rely on operating system
@@ -267,9 +265,7 @@ where
                 if not_ready {
                     if self.tasks.is_empty() && self.flags.contains(Flags::DISCONNECTED)
                     {
-                        return conn
-                            .poll_close()
-                            .map_err(|e| error!("Error during connection close: {}", e));
+                        return conn.poll_close().map_err(|e| e.into());
                     } else {
                         return Ok(Async::NotReady);
                     }
@@ -284,7 +280,7 @@ where
                 Ok(Async::NotReady) => return Ok(Async::NotReady),
                 Err(err) => {
                     trace!("Error handling connection: {}", err);
-                    return Err(());
+                    return Err(err.into());
                 }
             }
         } else {
diff --git a/src/server/http.rs b/src/server/http.rs
index 6344771b6..311c53cb2 100644
--- a/src/server/http.rs
+++ b/src/server/http.rs
@@ -18,7 +18,7 @@ use openssl::ssl::SslAcceptorBuilder;
 use rustls::ServerConfig;
 
 use super::acceptor::{AcceptorServiceFactory, DefaultAcceptor};
-use super::builder::{DefaultPipelineFactory, HttpServiceBuilder, ServiceProvider};
+use super::builder::{HttpServiceBuilder, ServiceProvider};
 use super::{IntoHttpHandler, KeepAlive};
 
 struct Socket {
@@ -131,7 +131,7 @@ where
         self
     }
 
-    /// Set server client timneout in milliseconds for first request.
+    /// Set server client timeout in milliseconds for first request.
     ///
     /// Defines a timeout for reading client request header. If a client does not transmit
     /// the entire set headers within this time, the request is terminated with
@@ -218,11 +218,8 @@ where
             addr,
             scheme: "http",
             handler: Box::new(
-                HttpServiceBuilder::new(
-                    self.factory.clone(),
-                    DefaultAcceptor,
-                    DefaultPipelineFactory::new(),
-                ).no_client_timer(),
+                HttpServiceBuilder::new(self.factory.clone(), DefaultAcceptor)
+                    .no_client_timer(),
             ),
         });
 
@@ -231,7 +228,7 @@ where
 
     #[doc(hidden)]
     /// Use listener for accepting incoming connection requests
-    pub(crate) fn listen_with<A>(mut self, lst: net::TcpListener, acceptor: A) -> Self
+    pub fn listen_with<A>(mut self, lst: net::TcpListener, acceptor: A) -> Self
     where
         A: AcceptorServiceFactory,
         <A::NewService as NewService>::InitError: fmt::Debug,
@@ -241,11 +238,7 @@ where
             lst,
             addr,
             scheme: "https",
-            handler: Box::new(HttpServiceBuilder::new(
-                self.factory.clone(),
-                acceptor,
-                DefaultPipelineFactory::new(),
-            )),
+            handler: Box::new(HttpServiceBuilder::new(self.factory.clone(), acceptor)),
         });
 
         self
@@ -339,7 +332,6 @@ where
                 handler: Box::new(HttpServiceBuilder::new(
                     self.factory.clone(),
                     acceptor.clone(),
-                    DefaultPipelineFactory::new(),
                 )),
             });
         }
@@ -483,10 +475,15 @@ impl<H: IntoHttpHandler, F: Fn() -> H + Send + Clone> HttpServer<H, F> {
         let sockets = mem::replace(&mut self.sockets, Vec::new());
 
         for socket in sockets {
+            let host = self
+                .host
+                .as_ref()
+                .map(|h| h.to_owned())
+                .unwrap_or_else(|| format!("{}", socket.addr));
             srv = socket.handler.register(
                 srv,
                 socket.lst,
-                self.host.clone(),
+                host,
                 socket.addr,
                 self.keep_alive.clone(),
                 self.client_timeout,
@@ -524,10 +521,15 @@ impl<H: IntoHttpHandler, F: Fn() -> H + Send + Clone> HttpServer<H, F> {
     /// Register current http server as actix-net's server service
     pub fn register(self, mut srv: Server) -> Server {
         for socket in self.sockets {
+            let host = self
+                .host
+                .as_ref()
+                .map(|h| h.to_owned())
+                .unwrap_or_else(|| format!("{}", socket.addr));
             srv = socket.handler.register(
                 srv,
                 socket.lst,
-                self.host.clone(),
+                host,
                 socket.addr,
                 self.keep_alive.clone(),
                 self.client_timeout,
diff --git a/src/server/incoming.rs b/src/server/incoming.rs
index 7ab289d04..c77280084 100644
--- a/src/server/incoming.rs
+++ b/src/server/incoming.rs
@@ -2,7 +2,7 @@
 use std::{io, net};
 
 use actix::{Actor, Arbiter, AsyncContext, Context, Handler, Message};
-use futures::Stream;
+use futures::{Future, Stream};
 use tokio_io::{AsyncRead, AsyncWrite};
 
 use super::channel::{HttpChannel, WrapperStream};
@@ -36,7 +36,7 @@ where
             apps,
             self.keep_alive,
             self.client_timeout as u64,
-            ServerSettings::new(Some(addr), &self.host, secure),
+            ServerSettings::new(addr, "127.0.0.1:8080", secure),
         );
 
         // start server
@@ -65,6 +65,8 @@ where
     type Result = ();
 
     fn handle(&mut self, msg: WrapperStream<T>, _: &mut Context<Self>) -> Self::Result {
-        Arbiter::spawn(HttpChannel::new(self.settings.clone(), msg, None));
+        Arbiter::spawn(
+            HttpChannel::new(self.settings.clone(), msg, None).map_err(|_| ()),
+        );
     }
 }
diff --git a/src/server/mod.rs b/src/server/mod.rs
index 1e145571c..f9d2b585e 100644
--- a/src/server/mod.rs
+++ b/src/server/mod.rs
@@ -140,15 +140,15 @@ mod ssl;
 pub use self::handler::*;
 pub use self::http::HttpServer;
 pub use self::message::Request;
-pub use self::settings::ServerSettings;
 pub use self::ssl::*;
 
+pub use self::error::{AcceptorError, HttpDispatchError};
+pub use self::service::HttpService;
+pub use self::settings::{ServerSettings, WorkerSettings};
+
 #[doc(hidden)]
 pub use self::helpers::write_content_length;
 
-#[doc(hidden)]
-pub use self::builder::HttpServiceBuilder;
-
 use body::Binary;
 use extensions::Extensions;
 use header::ContentEncoding;
diff --git a/src/server/service.rs b/src/server/service.rs
index 042c86ed4..2988bc661 100644
--- a/src/server/service.rs
+++ b/src/server/service.rs
@@ -5,11 +5,12 @@ use futures::future::{ok, FutureResult};
 use futures::{Async, Poll};
 
 use super::channel::HttpChannel;
+use super::error::HttpDispatchError;
 use super::handler::HttpHandler;
 use super::settings::WorkerSettings;
 use super::IoStream;
 
-pub(crate) struct HttpService<H, Io>
+pub struct HttpService<H, Io>
 where
     H: HttpHandler,
     Io: IoStream,
@@ -23,6 +24,7 @@ where
     H: HttpHandler,
     Io: IoStream,
 {
+    /// Create new `HttpService` instance.
     pub fn new(settings: WorkerSettings<H>) -> Self {
         HttpService {
             settings,
@@ -38,17 +40,17 @@ where
 {
     type Request = Io;
     type Response = ();
-    type Error = ();
+    type Error = HttpDispatchError;
     type InitError = ();
     type Service = HttpServiceHandler<H, Io>;
-    type Future = FutureResult<Self::Service, Self::Error>;
+    type Future = FutureResult<Self::Service, Self::InitError>;
 
     fn new_service(&self) -> Self::Future {
         ok(HttpServiceHandler::new(self.settings.clone()))
     }
 }
 
-pub(crate) struct HttpServiceHandler<H, Io>
+pub struct HttpServiceHandler<H, Io>
 where
     H: HttpHandler,
     Io: IoStream,
@@ -84,7 +86,7 @@ where
 {
     type Request = Io;
     type Response = ();
-    type Error = ();
+    type Error = HttpDispatchError;
     type Future = HttpChannel<Io, H>;
 
     fn poll_ready(&mut self) -> Poll<(), Self::Error> {
diff --git a/src/server/settings.rs b/src/server/settings.rs
index 5ca777290..fbe515f99 100644
--- a/src/server/settings.rs
+++ b/src/server/settings.rs
@@ -43,7 +43,7 @@ lazy_static! {
 
 /// Various server settings
 pub struct ServerSettings {
-    addr: Option<net::SocketAddr>,
+    addr: net::SocketAddr,
     secure: bool,
     host: String,
     cpu_pool: LazyCell<CpuPool>,
@@ -65,7 +65,7 @@ impl Clone for ServerSettings {
 impl Default for ServerSettings {
     fn default() -> Self {
         ServerSettings {
-            addr: None,
+            addr: "127.0.0.1:8080".parse().unwrap(),
             secure: false,
             host: "localhost:8080".to_owned(),
             responses: HttpResponsePool::get_pool(),
@@ -76,16 +76,8 @@ impl Default for ServerSettings {
 
 impl ServerSettings {
     /// Crate server settings instance
-    pub(crate) fn new(
-        addr: Option<net::SocketAddr>, host: &Option<String>, secure: bool,
-    ) -> ServerSettings {
-        let host = if let Some(ref host) = *host {
-            host.clone()
-        } else if let Some(ref addr) = addr {
-            format!("{}", addr)
-        } else {
-            "localhost".to_owned()
-        };
+    pub fn new(addr: net::SocketAddr, host: &str, secure: bool) -> ServerSettings {
+        let host = host.to_owned();
         let cpu_pool = LazyCell::new();
         let responses = HttpResponsePool::get_pool();
         ServerSettings {
@@ -98,7 +90,7 @@ impl ServerSettings {
     }
 
     /// Returns the socket address of the local half of this TCP connection
-    pub fn local_addr(&self) -> Option<net::SocketAddr> {
+    pub fn local_addr(&self) -> net::SocketAddr {
         self.addr
     }
 
@@ -153,7 +145,7 @@ impl<H> Clone for WorkerSettings<H> {
 }
 
 impl<H> WorkerSettings<H> {
-    pub(crate) fn new(
+    pub fn new(
         handler: H, keep_alive: KeepAlive, client_timeout: u64, settings: ServerSettings,
     ) -> WorkerSettings<H> {
         let (keep_alive, ka_enabled) = match keep_alive {
@@ -188,11 +180,13 @@ impl<H> WorkerSettings<H> {
     }
 
     #[inline]
+    /// Keep alive duration if configured.
     pub fn keep_alive(&self) -> Option<Duration> {
         self.0.keep_alive
     }
 
     #[inline]
+    /// Return state of connection keep-alive funcitonality
     pub fn keep_alive_enabled(&self) -> bool {
         self.0.ka_enabled
     }
@@ -217,6 +211,7 @@ impl<H> WorkerSettings<H> {
 
 impl<H: 'static> WorkerSettings<H> {
     #[inline]
+    /// Client timeout for first request.
     pub fn client_timer(&self) -> Option<Delay> {
         let delay = self.0.client_timeout;
         if delay != 0 {
@@ -227,6 +222,7 @@ impl<H: 'static> WorkerSettings<H> {
     }
 
     #[inline]
+    /// Return keep-alive timer delay is configured.
     pub fn keep_alive_timer(&self) -> Option<Delay> {
         if let Some(ka) = self.0.keep_alive {
             Some(Delay::new(self.now() + ka))
diff --git a/tests/test_server.rs b/tests/test_server.rs
index c1dbf531d..66b96ecce 100644
--- a/tests/test_server.rs
+++ b/tests/test_server.rs
@@ -1,4 +1,5 @@
 extern crate actix;
+extern crate actix_net;
 extern crate actix_web;
 #[cfg(feature = "brotli")]
 extern crate brotli2;
@@ -18,6 +19,7 @@ use std::io::{Read, Write};
 use std::sync::Arc;
 use std::{thread, time};
 
+use actix_net::server::Server;
 #[cfg(feature = "brotli")]
 use brotli2::write::{BrotliDecoder, BrotliEncoder};
 use bytes::{Bytes, BytesMut};
@@ -1010,3 +1012,38 @@ fn test_server_cookies() {
         assert_eq!(cookies[1], first_cookie);
     }
 }
+
+#[test]
+fn test_custom_pipeline() {
+    use actix::System;
+    use actix_web::server::{HttpService, KeepAlive, ServerSettings, WorkerSettings};
+
+    let addr = test::TestServer::unused_addr();
+
+    thread::spawn(move || {
+        Server::new()
+            .bind("test", addr, move || {
+                let app = App::new()
+                    .route("/", http::Method::GET, |_: HttpRequest| "OK")
+                    .finish();
+                let settings = WorkerSettings::new(
+                    app,
+                    KeepAlive::Disabled,
+                    10,
+                    ServerSettings::new(addr, "localhost", false),
+                );
+
+                HttpService::new(settings)
+            }).unwrap()
+            .run();
+    });
+
+    let mut sys = System::new("test");
+    {
+        let req = client::ClientRequest::get(format!("http://{}/", addr).as_str())
+            .finish()
+            .unwrap();
+        let response = sys.block_on(req.send()).unwrap();
+        assert!(response.status().is_success());
+    }
+}