diff --git a/CHANGES.md b/CHANGES.md
index db2c8e8f5..97b7ca63a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,12 +4,21 @@
 
 ### Changed
 
+* Resources and Scopes can now access non-overridden data types set on App (or containing scopes) when setting their own data. [#1486]
+
+## [3.0.0-alpha.2] - 2020-05-08
+
+### Changed
+
 * `{Resource,Scope}::default_service(f)` handlers now support app data extraction. [#1452]
 * Implement `std::error::Error` for our custom errors [#1422]
-* NormalizePath middleware now appends trailing / so that routes of form /example/ respond to /example requests.
+* NormalizePath middleware now appends trailing / so that routes of form /example/ respond to /example requests. [#1433]
+* Remove the `failure` feature and support.
 
 [#1422]: https://github.com/actix/actix-web/pull/1422
+[#1433]: https://github.com/actix/actix-web/pull/1433
 [#1452]: https://github.com/actix/actix-web/pull/1452
+[#1486]: https://github.com/actix/actix-web/pull/1486
 
 ## [3.0.0-alpha.1] - 2020-03-11
 
diff --git a/Cargo.toml b/Cargo.toml
index 7a0bef858..b24cc89d2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web"
-version = "3.0.0-alpha.1"
+version = "3.0.0-alpha.2"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix web is a simple, pragmatic and extremely fast web framework for Rust."
 readme = "README.md"
@@ -81,7 +81,7 @@ actix-threadpool = "0.3.1"
 actix-tls = "2.0.0-alpha.1"
 
 actix-web-codegen = "0.2.0"
-actix-http = "2.0.0-alpha.2"
+actix-http = "2.0.0-alpha.3"
 awc = { version = "2.0.0-alpha.1", default-features = false }
 
 bytes = "0.5.3"
@@ -101,6 +101,7 @@ time = { version = "0.2.7", default-features = false, features = ["std"] }
 url = "2.1"
 open-ssl = { version="0.10", package = "openssl", optional = true }
 rust-tls = { version = "0.17.0", package = "rustls", optional = true }
+tinyvec = { version = "0.3", features = ["alloc"] }
 
 [dev-dependencies]
 actix = "0.10.0-alpha.1"
diff --git a/actix-files/Cargo.toml b/actix-files/Cargo.toml
index ed887e323..60f92c5d9 100644
--- a/actix-files/Cargo.toml
+++ b/actix-files/Cargo.toml
@@ -18,8 +18,8 @@ name = "actix_files"
 path = "src/lib.rs"
 
 [dependencies]
-actix-web = { version = "3.0.0-alpha.1", default-features = false }
-actix-http = "2.0.0-alpha.2"
+actix-web = { version = "3.0.0-alpha.2", default-features = false }
+actix-http = "2.0.0-alpha.3"
 actix-service = "1.0.1"
 bitflags = "1"
 bytes = "0.5.3"
@@ -33,4 +33,4 @@ v_htmlescape = "0.4"
 
 [dev-dependencies]
 actix-rt = "1.0.0"
-actix-web = { version = "3.0.0-alpha.1", features=["openssl"] }
+actix-web = { version = "3.0.0-alpha.2", features = ["openssl"] }
diff --git a/actix-framed/Cargo.toml b/actix-framed/Cargo.toml
index adcda1422..94009db6f 100644
--- a/actix-framed/Cargo.toml
+++ b/actix-framed/Cargo.toml
@@ -23,7 +23,7 @@ actix-codec = "0.2.0"
 actix-service = "1.0.1"
 actix-router = "0.2.1"
 actix-rt = "1.0.0"
-actix-http = "2.0.0-alpha.2"
+actix-http = "2.0.0-alpha.3"
 
 bytes = "0.5.3"
 futures = "0.3.1"
diff --git a/actix-http/CHANGES.md b/actix-http/CHANGES.md
index 43f189afc..92302a666 100644
--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@@ -1,16 +1,21 @@
 # Changes
 
-## [Unreleased]
+## [2.0.0-alpha.3] - 2020-05-08
+
+### Fixed
+
+* Correct spelling of ConnectError::Unresolved [#1487]
+* Fix a mistake in the encoding of websocket continuation messages wherein
+  Item::FirstText and Item::FirstBinary are each encoded as the other.
 
 ### Changed
 
 * Implement `std::error::Error` for our custom errors [#1422]
 * Remove `failure` support for `ResponseError` since that crate
   will be deprecated in the near future.
-* Fix a mistake in the encoding of websocket continuation messages wherein
-  Item::FirstText and Item::FirstBinary are each encoded as the other.
 
 [#1422]: https://github.com/actix/actix-web/pull/1422
+[#1487]: https://github.com/actix/actix-web/pull/1487
 
 ## [2.0.0-alpha.2] - 2020-03-07
 
diff --git a/actix-http/Cargo.toml b/actix-http/Cargo.toml
index b2c6b8e0a..7e398f6fa 100644
--- a/actix-http/Cargo.toml
+++ b/actix-http/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-http"
-version = "2.0.0-alpha.2"
+version = "2.0.0-alpha.3"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix http primitives"
 readme = "README.md"
@@ -42,7 +42,7 @@ actors = ["actix"]
 [dependencies]
 actix-service = "1.0.5"
 actix-codec = "0.2.0"
-actix-connect = "2.0.0-alpha.2"
+actix-connect = "2.0.0-alpha.3"
 actix-utils = "1.0.6"
 actix-rt = "1.0.0"
 actix-threadpool = "0.3.1"
diff --git a/actix-http/src/client/error.rs b/actix-http/src/client/error.rs
index 0f0a86cd1..e4653a31a 100644
--- a/actix-http/src/client/error.rs
+++ b/actix-http/src/client/error.rs
@@ -48,7 +48,7 @@ pub enum ConnectError {
 
     /// Unresolved host name
     #[display(fmt = "Connector received `Connect` method with unresolved host")]
-    Unresolverd,
+    Unresolved,
 
     /// Connection io error
     #[display(fmt = "{}", _0)]
@@ -63,7 +63,7 @@ impl From<actix_connect::ConnectError> for ConnectError {
             actix_connect::ConnectError::Resolver(e) => ConnectError::Resolver(e),
             actix_connect::ConnectError::NoRecords => ConnectError::NoRecords,
             actix_connect::ConnectError::InvalidInput => panic!(),
-            actix_connect::ConnectError::Unresolverd => ConnectError::Unresolverd,
+            actix_connect::ConnectError::Unresolved => ConnectError::Unresolved,
             actix_connect::ConnectError::Io(e) => ConnectError::Io(e),
         }
     }
diff --git a/actix-http/src/client/pool.rs b/actix-http/src/client/pool.rs
index 983396f92..5a10725b0 100644
--- a/actix-http/src/client/pool.rs
+++ b/actix-http/src/client/pool.rs
@@ -105,7 +105,7 @@ where
             let key = if let Some(authority) = req.uri.authority() {
                 authority.clone().into()
             } else {
-                return Err(ConnectError::Unresolverd);
+                return Err(ConnectError::Unresolved);
             };
 
             // acquire connection
@@ -195,7 +195,7 @@ where
         if let Some(i) = self.inner.take() {
             let mut inner = i.as_ref().borrow_mut();
             inner.release_waiter(&self.key, self.token);
-            inner.check_availibility();
+            inner.check_availability();
         }
     }
 }
@@ -232,7 +232,7 @@ where
         if let Some(i) = self.inner.take() {
             let mut inner = i.as_ref().borrow_mut();
             inner.release();
-            inner.check_availibility();
+            inner.check_availability();
         }
     }
 }
@@ -359,7 +359,7 @@ where
                 created,
                 used: Instant::now(),
             });
-        self.check_availibility();
+        self.check_availability();
     }
 
     fn release_close(&mut self, io: ConnectionType<Io>) {
@@ -369,10 +369,10 @@ where
                 actix_rt::spawn(CloseConnection::new(io, timeout))
             }
         }
-        self.check_availibility();
+        self.check_availability();
     }
 
-    fn check_availibility(&self) {
+    fn check_availability(&self) {
         if !self.waiters_queue.is_empty() && self.acquired < self.config.limit {
             self.waker.wake();
         }
@@ -534,7 +534,7 @@ where
         if let Some(inner) = self.project().inner.take() {
             let mut inner = inner.as_ref().borrow_mut();
             inner.release();
-            inner.check_availibility();
+            inner.check_availability();
         }
     }
 }
diff --git a/actix-multipart/Cargo.toml b/actix-multipart/Cargo.toml
index e81b07cb7..d8421d0eb 100644
--- a/actix-multipart/Cargo.toml
+++ b/actix-multipart/Cargo.toml
@@ -16,7 +16,7 @@ name = "actix_multipart"
 path = "src/lib.rs"
 
 [dependencies]
-actix-web = { version = "3.0.0-alpha.1", default-features = false }
+actix-web = { version = "3.0.0-alpha.2", default-features = false }
 actix-service = "1.0.1"
 actix-utils = "1.0.3"
 bytes = "0.5.3"
@@ -29,4 +29,4 @@ twoway = "0.2"
 
 [dev-dependencies]
 actix-rt = "1.0.0"
-actix-http = "2.0.0-alpha.2"
+actix-http = "2.0.0-alpha.3"
diff --git a/actix-web-actors/CHANGES.md b/actix-web-actors/CHANGES.md
index 66ff7ed6c..68947569a 100644
--- a/actix-web-actors/CHANGES.md
+++ b/actix-web-actors/CHANGES.md
@@ -1,5 +1,11 @@
 # Changes
 
+# [3.0.0-alpha.1] - 2020-05-08
+
+* Update the actix-web dependency to 3.0.0-alpha.1
+* Update the actix dependency to 0.10.0-alpha.2
+* Update the actix-http dependency to 2.0.0-alpha.3
+
 ## [2.0.0] - 2019-12-20
 
 * Release
diff --git a/actix-web-actors/Cargo.toml b/actix-web-actors/Cargo.toml
index 7e24d8c99..f9bcc65de 100644
--- a/actix-web-actors/Cargo.toml
+++ b/actix-web-actors/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web-actors"
-version = "2.0.0"
+version = "3.0.0-alpha.1"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix actors support for actix web framework."
 readme = "README.md"
@@ -16,9 +16,9 @@ name = "actix_web_actors"
 path = "src/lib.rs"
 
 [dependencies]
-actix = "0.10.0-alpha.1"
-actix-web = "3.0.0-alpha.1"
-actix-http = "2.0.0-alpha.2"
+actix = "0.10.0-alpha.2"
+actix-web = "3.0.0-alpha.2"
+actix-http = "2.0.0-alpha.3"
 actix-codec = "0.2.0"
 bytes = "0.5.2"
 futures = "0.3.1"
@@ -26,4 +26,4 @@ pin-project = "0.4.6"
 
 [dev-dependencies]
 actix-rt = "1.0.0"
-env_logger = "0.6"
+env_logger = "0.7"
diff --git a/actix-web-actors/src/context.rs b/actix-web-actors/src/context.rs
index 6a403de12..c889092d2 100644
--- a/actix-web-actors/src/context.rs
+++ b/actix-web-actors/src/context.rs
@@ -174,7 +174,7 @@ where
 
         // frames
         if let Some(data) = self.fut.ctx().stream.pop_front() {
-            Poll::Ready(data.map(|b| Ok(b)))
+            Poll::Ready(data.map(Ok))
         } else if self.fut.alive() {
             Poll::Pending
         } else {
diff --git a/actix-web-codegen/Cargo.toml b/actix-web-codegen/Cargo.toml
index 42befc0dd..835c9fcc9 100644
--- a/actix-web-codegen/Cargo.toml
+++ b/actix-web-codegen/Cargo.toml
@@ -18,5 +18,5 @@ proc-macro2 = "^1"
 
 [dev-dependencies]
 actix-rt = "1.0.0"
-actix-web = "3.0.0-alpha.1"
+actix-web = "3.0.0-alpha.2"
 futures = "0.3.1"
diff --git a/actix-web-codegen/src/lib.rs b/actix-web-codegen/src/lib.rs
index b724eb797..39a8a6464 100644
--- a/actix-web-codegen/src/lib.rs
+++ b/actix-web-codegen/src/lib.rs
@@ -21,6 +21,7 @@
 //!
 //! - `"path"` - Raw literal string with path for which to register handle. Mandatory.
 //! - `guard="function_name"` - Registers function as guard using `actix_web::guard::fn_guard`
+//! - `wrap="Middleware"` - Registers a resource middleware.
 //!
 //! ## Notes
 //!
@@ -54,6 +55,7 @@ use proc_macro::TokenStream;
 ///
 /// - `"path"` - Raw literal string with path for which to register handler. Mandatory.
 /// - `guard="function_name"` - Registers function as guard using `actix_web::guard::fn_guard`
+/// - `wrap="Middleware"` - Registers a resource middleware.
 #[proc_macro_attribute]
 pub fn get(args: TokenStream, input: TokenStream) -> TokenStream {
     route::generate(args, input, route::GuardType::Get)
diff --git a/actix-web-codegen/src/route.rs b/actix-web-codegen/src/route.rs
index 3e6f9c979..7e3d43f1d 100644
--- a/actix-web-codegen/src/route.rs
+++ b/actix-web-codegen/src/route.rs
@@ -56,12 +56,14 @@ impl ToTokens for GuardType {
 struct Args {
     path: syn::LitStr,
     guards: Vec<Ident>,
+    wrappers: Vec<syn::Type>,
 }
 
 impl Args {
     fn new(args: AttributeArgs) -> syn::Result<Self> {
         let mut path = None;
         let mut guards = Vec::new();
+        let mut wrappers = Vec::new();
         for arg in args {
             match arg {
                 NestedMeta::Lit(syn::Lit::Str(lit)) => match path {
@@ -85,10 +87,19 @@ impl Args {
                                 "Attribute guard expects literal string!",
                             ));
                         }
+                    } else if nv.path.is_ident("wrap") {
+                        if let syn::Lit::Str(lit) = nv.lit {
+                            wrappers.push(lit.parse()?);
+                        } else {
+                            return Err(syn::Error::new_spanned(
+                                nv.lit,
+                                "Attribute wrap expects type",
+                            ));
+                        }
                     } else {
                         return Err(syn::Error::new_spanned(
                             nv.path,
-                            "Unknown attribute key is specified. Allowed: guard.",
+                            "Unknown attribute key is specified. Allowed: guard and wrap",
                         ));
                     }
                 }
@@ -100,6 +111,7 @@ impl Args {
         Ok(Args {
             path: path.unwrap(),
             guards,
+            wrappers,
         })
     }
 }
@@ -184,7 +196,7 @@ impl ToTokens for Route {
             name,
             guard,
             ast,
-            args: Args { path, guards },
+            args: Args { path, guards, wrappers },
             resource_type,
         } = self;
         let resource_name = name.to_string();
@@ -199,6 +211,7 @@ impl ToTokens for Route {
                         .name(#resource_name)
                         .guard(actix_web::guard::#guard())
                         #(.guard(actix_web::guard::fn_guard(#guards)))*
+                        #(.wrap(#wrappers))*
                         .#resource_type(#name);
 
                     actix_web::dev::HttpServiceFactory::register(__resource, __config)
diff --git a/actix-web-codegen/tests/test_macro.rs b/actix-web-codegen/tests/test_macro.rs
index ffb50c11e..8264a7fd7 100644
--- a/actix-web-codegen/tests/test_macro.rs
+++ b/actix-web-codegen/tests/test_macro.rs
@@ -1,6 +1,11 @@
-use actix_web::{http, test, web::Path, App, HttpResponse, Responder};
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+use actix_web::{http, test, web::Path, App, HttpResponse, Responder, Error};
+use actix_web::dev::{Service, Transform, ServiceRequest, ServiceResponse};
 use actix_web_codegen::{connect, delete, get, head, options, patch, post, put, trace};
 use futures::{future, Future};
+use actix_web::http::header::{HeaderName, HeaderValue};
 
 // Make sure that we can name function as 'config'
 #[get("/config")]
@@ -73,6 +78,65 @@ async fn get_param_test(_: Path<String>) -> impl Responder {
     HttpResponse::Ok()
 }
 
+pub struct ChangeStatusCode;
+
+impl<S, B> Transform<S> for ChangeStatusCode
+where
+    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+    S::Future: 'static,
+    B: 'static,
+{
+    type Request = ServiceRequest;
+    type Response = ServiceResponse<B>;
+    type Error = Error;
+    type InitError = ();
+    type Transform = ChangeStatusCodeMiddleware<S>;
+    type Future = future::Ready<Result<Self::Transform, Self::InitError>>;
+
+    fn new_transform(&self, service: S) -> Self::Future {
+        future::ok(ChangeStatusCodeMiddleware { service })
+    }
+}
+
+pub struct ChangeStatusCodeMiddleware<S> {
+    service: S,
+}
+
+impl<S, B> Service for ChangeStatusCodeMiddleware<S>
+where
+    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+    S::Future: 'static,
+    B: 'static,
+{
+    type Request = ServiceRequest;
+    type Response = ServiceResponse<B>;
+    type Error = Error;
+    type Future = Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>>>>;
+
+    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+        self.service.poll_ready(cx)
+    }
+
+    fn call(&mut self, req: ServiceRequest) -> Self::Future {
+
+        let fut = self.service.call(req);
+
+        Box::pin(async move {
+            let mut res = fut.await?;
+            let headers = res.headers_mut();
+            let header_name = HeaderName::from_lowercase(b"custom-header").unwrap();
+            let header_value = HeaderValue::from_str("hello").unwrap();
+            headers.insert(header_name, header_value);
+            Ok(res)
+        })
+    }
+}
+
+#[get("/test/wrap", wrap = "ChangeStatusCode")]
+async fn get_wrap(_: Path<String>) -> impl Responder {
+    HttpResponse::Ok()
+}
+
 #[actix_rt::test]
 async fn test_params() {
     let srv = test::start(|| {
@@ -155,3 +219,15 @@ async fn test_auto_async() {
     let response = request.send().await.unwrap();
     assert!(response.status().is_success());
 }
+
+#[actix_rt::test]
+async fn test_wrap() {
+    let srv = test::start(|| {
+        App::new()
+            .service(get_wrap)
+    });
+
+    let request = srv.request(http::Method::GET, srv.url("/test/wrap"));
+    let response = request.send().await.unwrap();
+    assert!(response.headers().contains_key("custom-header"));
+}
diff --git a/awc/Cargo.toml b/awc/Cargo.toml
index fde136eb0..5ccf31654 100644
--- a/awc/Cargo.toml
+++ b/awc/Cargo.toml
@@ -36,7 +36,7 @@ compress = ["actix-http/compress"]
 [dependencies]
 actix-codec = "0.2.0"
 actix-service = "1.0.1"
-actix-http = "2.0.0-alpha.2"
+actix-http = "2.0.0-alpha.3"
 actix-rt = "1.0.0"
 
 base64 = "0.11"
@@ -50,17 +50,17 @@ rand = "0.7"
 serde = "1.0"
 serde_json = "1.0"
 serde_urlencoded = "0.6.1"
-open-ssl = { version="0.10", package="openssl", optional = true }
-rust-tls = { version = "0.17.0", package="rustls", optional = true, features = ["dangerous_configuration"]  }
+open-ssl = { version = "0.10", package = "openssl", optional = true }
+rust-tls = { version = "0.17.0", package = "rustls", optional = true, features = ["dangerous_configuration"] }
 
 [dev-dependencies]
-actix-connect = { version = "2.0.0-alpha.2", features=["openssl"] }
-actix-web = { version = "3.0.0-alpha.1", features=["openssl"] }
-actix-http = { version = "2.0.0-alpha.2", features=["openssl"] }
-actix-http-test = { version = "1.0.0", features=["openssl"] }
+actix-connect = { version = "2.0.0-alpha.2", features = ["openssl"] }
+actix-web = { version = "3.0.0-alpha.2", features = ["openssl"] }
+actix-http = { version = "2.0.0-alpha.3", features = ["openssl"] }
+actix-http-test = { version = "1.0.0", features = ["openssl"] }
 actix-utils = "1.0.3"
 actix-server = "1.0.0"
-actix-tls = { version = "2.0.0-alpha.1", features=["openssl", "rustls"] }
+actix-tls = { version = "2.0.0-alpha.1", features = ["openssl", "rustls"] }
 brotli2 = "0.3.2"
 flate2 = "1.0.13"
 futures = "0.3.1"
diff --git a/src/app_service.rs b/src/app_service.rs
index 808592e58..2d64bed3e 100644
--- a/src/app_service.rs
+++ b/src/app_service.rs
@@ -245,7 +245,7 @@ where
             inner.path.reset();
             inner.head = head;
             inner.payload = payload;
-            inner.app_data = self.data.clone();
+            inner.app_data.push(self.data.clone());
             req
         } else {
             HttpRequest::new(
diff --git a/src/request.rs b/src/request.rs
index 51a1c54ff..72fea1faf 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -6,6 +6,7 @@ use actix_http::http::{HeaderMap, Method, Uri, Version};
 use actix_http::{Error, Extensions, HttpMessage, Message, Payload, RequestHead};
 use actix_router::{Path, Url};
 use futures::future::{ok, Ready};
+use tinyvec::TinyVec;
 
 use crate::config::AppConfig;
 use crate::error::UrlGenerationError;
@@ -21,7 +22,7 @@ pub(crate) struct HttpRequestInner {
     pub(crate) head: Message<RequestHead>,
     pub(crate) path: Path<Url>,
     pub(crate) payload: Payload,
-    pub(crate) app_data: Rc<Extensions>,
+    pub(crate) app_data: TinyVec<[Rc<Extensions>; 4]>,
     rmap: Rc<ResourceMap>,
     config: AppConfig,
     pool: &'static HttpRequestPool,
@@ -38,13 +39,16 @@ impl HttpRequest {
         app_data: Rc<Extensions>,
         pool: &'static HttpRequestPool,
     ) -> HttpRequest {
+        let mut data = TinyVec::<[Rc<Extensions>; 4]>::new();
+        data.push(app_data);
+
         HttpRequest(Rc::new(HttpRequestInner {
             head,
             path,
             payload,
             rmap,
             config,
-            app_data,
+            app_data: data,
             pool,
         }))
     }
@@ -215,11 +219,13 @@ impl HttpRequest {
     /// let opt_t = req.app_data::<Data<T>>();
     /// ```
     pub fn app_data<T: 'static>(&self) -> Option<&T> {
-        if let Some(st) = self.0.app_data.get::<T>() {
-            Some(&st)
-        } else {
-            None
+        for container in self.0.app_data.iter().rev() {
+            if let Some(data) = container.get::<T>() {
+                return Some(data);
+            }
         }
+
+        None
     }
 }
 
@@ -342,10 +348,13 @@ impl HttpRequestPool {
 
 #[cfg(test)]
 mod tests {
+    use actix_service::Service;
+    use bytes::Bytes;
+
     use super::*;
     use crate::dev::{ResourceDef, ResourceMap};
     use crate::http::{header, StatusCode};
-    use crate::test::{call_service, init_service, TestRequest};
+    use crate::test::{call_service, init_service, read_body, TestRequest};
     use crate::{web, App, HttpResponse};
 
     #[test]
@@ -494,6 +503,68 @@ mod tests {
         assert_eq!(resp.status(), StatusCode::BAD_REQUEST);
     }
 
+    #[actix_rt::test]
+    async fn test_cascading_data() {
+        #[allow(dead_code)]
+        fn echo_usize(req: HttpRequest) -> HttpResponse {
+            let num = req.app_data::<usize>().unwrap();
+            HttpResponse::Ok().body(num.to_string())
+        }
+
+        let mut srv = init_service(
+            App::new()
+                .app_data(88usize)
+                .service(web::resource("/").route(web::get().to(echo_usize)))
+                .service(
+                    web::resource("/one")
+                        .app_data(1u32)
+                        .route(web::get().to(echo_usize)),
+                ),
+        )
+        .await;
+
+        let req = TestRequest::get().uri("/").to_request();
+        let resp = srv.call(req).await.unwrap();
+        let body = read_body(resp).await;
+        assert_eq!(body, Bytes::from_static(b"88"));
+
+        let req = TestRequest::get().uri("/one").to_request();
+        let resp = srv.call(req).await.unwrap();
+        let body = read_body(resp).await;
+        assert_eq!(body, Bytes::from_static(b"88"));
+    }
+
+    #[actix_rt::test]
+    async fn test_overwrite_data() {
+        #[allow(dead_code)]
+        fn echo_usize(req: HttpRequest) -> HttpResponse {
+            let num = req.app_data::<usize>().unwrap();
+            HttpResponse::Ok().body(num.to_string())
+        }
+
+        let mut srv = init_service(
+            App::new()
+                .app_data(88usize)
+                .service(web::resource("/").route(web::get().to(echo_usize)))
+                .service(
+                    web::resource("/one")
+                        .app_data(1usize)
+                        .route(web::get().to(echo_usize)),
+                ),
+        )
+        .await;
+
+        let req = TestRequest::get().uri("/").to_request();
+        let resp = srv.call(req).await.unwrap();
+        let body = read_body(resp).await;
+        assert_eq!(body, Bytes::from_static(b"88"));
+
+        let req = TestRequest::get().uri("/one").to_request();
+        let resp = srv.call(req).await.unwrap();
+        let body = read_body(resp).await;
+        assert_eq!(body, Bytes::from_static(b"1"));
+    }
+
     #[actix_rt::test]
     async fn test_extensions_dropped() {
         struct Tracker {
diff --git a/src/resource.rs b/src/resource.rs
index 634294cc2..477f0bfba 100644
--- a/src/resource.rs
+++ b/src/resource.rs
@@ -198,9 +198,7 @@ where
 
     /// Add resource data.
     ///
-    /// If used, this method will create a new data context used for extracting
-    /// from requests. Data added here is *not* merged with data added on App 
-    /// or containing scopes.
+    /// Data of different types from parent contexts will still be accessible.
     pub fn app_data<U: 'static>(mut self, data: U) -> Self {
         if self.data.is_none() {
             self.data = Some(Extensions::new());
@@ -539,14 +537,14 @@ impl Service for ResourceService {
         for route in self.routes.iter_mut() {
             if route.check(&mut req) {
                 if let Some(ref data) = self.data {
-                    req.set_data_container(data.clone());
+                    req.add_data_container(data.clone());
                 }
                 return Either::Right(route.call(req));
             }
         }
         if let Some(ref mut default) = self.default {
             if let Some(ref data) = self.data {
-                req.set_data_container(data.clone());
+                req.add_data_container(data.clone());
             }
             Either::Right(default.call(req))
         } else {
@@ -590,14 +588,13 @@ mod tests {
 
     use actix_rt::time::delay_for;
     use actix_service::Service;
-    use bytes::Bytes;
     use futures::future::ok;
 
     use crate::http::{header, HeaderValue, Method, StatusCode};
     use crate::middleware::DefaultHeaders;
     use crate::service::ServiceRequest;
-    use crate::test::{call_service, init_service, read_body, TestRequest};
-    use crate::{guard, web, App, Error, HttpRequest, HttpResponse};
+    use crate::test::{call_service, init_service, TestRequest};
+    use crate::{guard, web, App, Error, HttpResponse};
 
     #[actix_rt::test]
     async fn test_middleware() {
@@ -623,79 +620,6 @@ mod tests {
         );
     }
 
-    #[actix_rt::test]
-    async fn test_overwritten_data() {
-        #[allow(dead_code)]
-        fn echo_usize(req: HttpRequest) -> HttpResponse {
-            let num = req.app_data::<usize>().unwrap();
-            HttpResponse::Ok().body(format!("{}", num))
-        }
-
-        #[allow(dead_code)]
-        fn echo_u32(req: HttpRequest) -> HttpResponse {
-            let num = req.app_data::<u32>().unwrap();
-            HttpResponse::Ok().body(format!("{}", num))
-        }
-
-        #[allow(dead_code)]
-        fn echo_both(req: HttpRequest) -> HttpResponse {
-            let num = req.app_data::<usize>().unwrap();
-            let num2 = req.app_data::<u32>().unwrap();
-            HttpResponse::Ok().body(format!("{}-{}", num, num2))
-        }
-
-        let mut srv = init_service(
-            App::new()
-                .app_data(88usize)
-                .service(web::resource("/").route(web::get().to(echo_usize)))
-                .service(
-                    web::resource("/one")
-                        .app_data(1usize)
-                        .route(web::get().to(echo_usize)),
-                )
-                .service(
-                    web::resource("/two")
-                        .app_data(2usize)
-                        .route(web::get().to(echo_usize)),
-                )
-                .service(
-                    web::resource("/three")
-                        .app_data(3u32)
-                        // this doesnt work because app_data "overrides" the
-                        // entire data field potentially passed down
-                        // .route(web::get().to(echo_both)),
-                        .route(web::get().to(echo_u32)),
-                )
-                .service(web::resource("/eight").route(web::get().to(echo_usize))),
-        )
-        .await;
-
-        let req = TestRequest::get().uri("/").to_request();
-        let resp = srv.call(req).await.unwrap();
-        let body = read_body(resp).await;
-        assert_eq!(body, Bytes::from_static(b"88"));
-
-        let req = TestRequest::get().uri("/one").to_request();
-        let resp = srv.call(req).await.unwrap();
-        let body = read_body(resp).await;
-        assert_eq!(body, Bytes::from_static(b"1"));
-
-        let req = TestRequest::get().uri("/two").to_request();
-        let resp = srv.call(req).await.unwrap();
-        let body = read_body(resp).await;
-        assert_eq!(body, Bytes::from_static(b"2"));
-
-        // let req = TestRequest::get().uri("/three").to_request();
-        // let resp = srv.call(req).await.unwrap();
-        // let body = read_body(resp).await;
-        // assert_eq!(body, Bytes::from_static(b"88-3"));
-
-        let req = TestRequest::get().uri("/eight").to_request();
-        let resp = srv.call(req).await.unwrap();
-        let body = read_body(resp).await;
-        assert_eq!(body, Bytes::from_static(b"88"));
-    }
-
     #[actix_rt::test]
     async fn test_middleware_fn() {
         let mut srv = init_service(
diff --git a/src/scope.rs b/src/scope.rs
index 2016c6f1c..407d4946d 100644
--- a/src/scope.rs
+++ b/src/scope.rs
@@ -153,9 +153,7 @@ where
 
     /// Add scope data.
     ///
-    /// If used, this method will create a new data context used for extracting
-    /// from requests. Data added here is *not* merged with data added on App
-    /// or containing scopes.
+    /// Data of different types from parent contexts will still be accessible.
     pub fn app_data<U: 'static>(mut self, data: U) -> Self {
         if self.data.is_none() {
             self.data = Some(Extensions::new());
@@ -624,12 +622,12 @@ impl Service for ScopeService {
 
         if let Some((srv, _info)) = res {
             if let Some(ref data) = self.data {
-                req.set_data_container(data.clone());
+                req.add_data_container(data.clone());
             }
             Either::Left(srv.call(req))
         } else if let Some(ref mut default) = self.default {
             if let Some(ref data) = self.data {
-                req.set_data_container(data.clone());
+                req.add_data_container(data.clone());
             }
             Either::Left(default.call(req))
         } else {
diff --git a/src/service.rs b/src/service.rs
index b783fd720..8dc9fa93d 100644
--- a/src/service.rs
+++ b/src/service.rs
@@ -217,11 +217,13 @@ impl ServiceRequest {
     /// Get an application data stored with `App::data()` method during
     /// application configuration.
     pub fn app_data<T: 'static>(&self) -> Option<Data<T>> {
-        if let Some(st) = (self.0).0.app_data.get::<Data<T>>() {
-            Some(st.clone())
-        } else {
-            None
+        for container in (self.0).0.app_data.iter().rev() {
+            if let Some(data) = container.get::<Data<T>>() {
+                return Some(Data::clone(&data));
+            }
         }
+
+        None
     }
 
     /// Set request payload.
@@ -230,9 +232,12 @@ impl ServiceRequest {
     }
 
     #[doc(hidden)]
-    /// Set new app data container
-    pub fn set_data_container(&mut self, extensions: Rc<Extensions>) {
-        Rc::get_mut(&mut (self.0).0).unwrap().app_data = extensions;
+    /// Add app data container to request's resolution set.
+    pub fn add_data_container(&mut self, extensions: Rc<Extensions>) {
+        Rc::get_mut(&mut (self.0).0)
+            .unwrap()
+            .app_data
+            .push(extensions);
     }
 }
 
@@ -578,7 +583,6 @@ mod tests {
         let resp = srv.call(req).await.unwrap();
         assert_eq!(resp.status(), http::StatusCode::NOT_FOUND);
     }
-
     #[test]
     fn test_fmt_debug() {
         let req = TestRequest::get()
diff --git a/test-server/Cargo.toml b/test-server/Cargo.toml
index 97581585d..f44ecc5fd 100644
--- a/test-server/Cargo.toml
+++ b/test-server/Cargo.toml
@@ -52,8 +52,8 @@ sha1 = "0.6"
 slab = "0.4"
 serde_urlencoded = "0.6.1"
 time = { version = "0.2.7", default-features = false, features = ["std"] }
-open-ssl = { version="0.10", package = "openssl", optional = true }
+open-ssl = { version = "0.10", package = "openssl", optional = true }
 
 [dev-dependencies]
-actix-web = "3.0.0-alpha.1"
-actix-http = "2.0.0-alpha.2"
+actix-web = "3.0.0-alpha.2"
+actix-http = "2.0.0-alpha.3"