diff --git a/examples/middleware.rs b/examples/middleware.rs
index 4e5c9b1e6..4eb139469 100644
--- a/examples/middleware.rs
+++ b/examples/middleware.rs
@@ -31,7 +31,7 @@ fn user_loader<'a>(
         if let Some(user) = request.state().find_user().await {
             tide::log::trace!("user loaded", {user: user.name});
             request.set_ext(user);
-            next.run(request).await
+            Ok(next.run(request).await)
         // this middleware only needs to run before the endpoint, so
         // it just passes through the result of Next
         } else {
@@ -71,7 +71,7 @@ impl<State: Send + Sync + 'static> Middleware<State> for RequestCounterMiddlewar
             tide::log::trace!("request counter", { count: count });
             req.set_ext(RequestCount(count));
 
-            let mut res = next.run(req).await?;
+            let mut res = next.run(req).await;
 
             res.insert_header("request-number", count.to_string());
             Ok(res)
@@ -99,8 +99,7 @@ async fn main() -> Result<()> {
     tide::log::start();
     let mut app = tide::with_state(UserDatabase::default());
 
-    app.middleware(After(|result: Result| async move {
-        let response = result.unwrap_or_else(|e| Response::new(e.status()));
+    app.middleware(After(|response: Response| async move {
         match response.status() {
             StatusCode::NotFound => {
                 let mut res = Response::new(404);
diff --git a/src/cookies/middleware.rs b/src/cookies/middleware.rs
index f713ae259..00b6eca17 100644
--- a/src/cookies/middleware.rs
+++ b/src/cookies/middleware.rs
@@ -49,7 +49,7 @@ impl<State: Send + Sync + 'static> Middleware<State> for CookiesMiddleware {
                 content
             };
 
-            let mut res = next.run(ctx).await?;
+            let mut res = next.run(ctx).await;
 
             // Don't do anything if there are no cookies.
             if res.cookie_events.is_empty() {
diff --git a/src/endpoint.rs b/src/endpoint.rs
index b955362ed..c28dc09f8 100644
--- a/src/endpoint.rs
+++ b/src/endpoint.rs
@@ -44,16 +44,17 @@ use crate::{Middleware, Request, Response};
 /// ```
 ///
 /// Tide routes will also accept endpoints with `Fn` signatures of this form, but using the `async` keyword has better ergonomics.
-pub trait Endpoint<State>: Send + Sync + 'static {
+pub trait Endpoint<State: Send + Sync + 'static>: Send + Sync + 'static {
     /// Invoke the endpoint within the given context
     fn call<'a>(&'a self, req: Request<State>) -> BoxFuture<'a, crate::Result>;
 }
 
 pub(crate) type DynEndpoint<State> = dyn Endpoint<State>;
 
-impl<State, F: Send + Sync + 'static, Fut, Res> Endpoint<State> for F
+impl<State, F, Fut, Res> Endpoint<State> for F
 where
-    F: Fn(Request<State>) -> Fut,
+    State: Send + Sync + 'static,
+    F: Send + Sync + 'static + Fn(Request<State>) -> Fut,
     Fut: Future<Output = Result<Res>> + Send + 'static,
     Res: Into<Response>,
 {
@@ -92,6 +93,7 @@ impl<E, State> std::fmt::Debug for MiddlewareEndpoint<E, State> {
 
 impl<E, State> MiddlewareEndpoint<E, State>
 where
+    State: Send + Sync + 'static,
     E: Endpoint<State>,
 {
     pub fn wrap_with_middleware(ep: E, middleware: &[Arc<dyn Middleware<State>>]) -> Self {
@@ -102,7 +104,7 @@ where
     }
 }
 
-impl<E, State: 'static> Endpoint<State> for MiddlewareEndpoint<E, State>
+impl<E, State: 'static + Send + Sync> Endpoint<State> for MiddlewareEndpoint<E, State>
 where
     E: Endpoint<State>,
 {
@@ -111,6 +113,6 @@ where
             endpoint: &self.endpoint,
             next_middleware: &self.middleware,
         };
-        next.run(req)
+        Box::pin(async move { Ok(next.run(req).await) })
     }
 }
diff --git a/src/fs/serve_dir.rs b/src/fs/serve_dir.rs
index 5b213c618..6ba5a979f 100644
--- a/src/fs/serve_dir.rs
+++ b/src/fs/serve_dir.rs
@@ -17,7 +17,10 @@ impl ServeDir {
     }
 }
 
-impl<State> Endpoint<State> for ServeDir {
+impl<State> Endpoint<State> for ServeDir
+where
+    State: Send + Sync + 'static,
+{
     fn call<'a>(&'a self, req: Request<State>) -> BoxFuture<'a, Result> {
         let path = req.url().path();
         let path = path.trim_start_matches(&self.prefix);
diff --git a/src/log/middleware.rs b/src/log/middleware.rs
index 0d0aabfd5..60cb5fa81 100644
--- a/src/log/middleware.rs
+++ b/src/log/middleware.rs
@@ -37,43 +37,31 @@ impl LogMiddleware {
             path: path,
         });
         let start = std::time::Instant::now();
-        match next.run(ctx).await {
-            Ok(res) => {
-                let status = res.status();
-                if status.is_server_error() {
-                    log::error!("--> Response sent", {
-                        method: method,
-                        path: path,
-                        status: status as u16,
-                        duration: format!("{:?}", start.elapsed()),
-                    });
-                } else if status.is_client_error() {
-                    log::warn!("--> Response sent", {
-                        method: method,
-                        path: path,
-                        status: status as u16,
-                        duration: format!("{:?}", start.elapsed()),
-                    });
-                } else {
-                    log::info!("--> Response sent", {
-                        method: method,
-                        path: path,
-                        status: status as u16,
-                        duration: format!("{:?}", start.elapsed()),
-                    });
-                }
-                Ok(res)
-            }
-            Err(err) => {
-                log::error!("{}", err.to_string(), {
-                    method: method,
-                    path: path,
-                    status: err.status() as u16,
-                    duration: format!("{:?}", start.elapsed()),
-                });
-                Err(err)
-            }
+        let response = next.run(ctx).await;
+        let status = response.status();
+        if status.is_server_error() {
+            log::error!("--> Response sent", {
+                method: method,
+                path: path,
+                status: status as u16,
+                duration: format!("{:?}", start.elapsed()),
+            });
+        } else if status.is_client_error() {
+            log::warn!("--> Response sent", {
+                method: method,
+                path: path,
+                status: status as u16,
+                duration: format!("{:?}", start.elapsed()),
+            });
+        } else {
+            log::info!("--> Response sent", {
+                method: method,
+                path: path,
+                status: status as u16,
+                duration: format!("{:?}", start.elapsed()),
+            });
         }
+        Ok(response)
     }
 }
 
diff --git a/src/middleware.rs b/src/middleware.rs
index e6010c350..7e04a9dcc 100644
--- a/src/middleware.rs
+++ b/src/middleware.rs
@@ -75,8 +75,7 @@ where
 /// use tide::{After, Response, http};
 ///
 /// let mut app = tide::new();
-/// app.middleware(After(|res: tide::Result| async move {
-///     let res = res.unwrap_or_else(|e| Response::new(e.status()));
+/// app.middleware(After(|res: Response| async move {
 ///     match res.status() {
 ///         http::StatusCode::NotFound => Ok("Page not found".into()),
 ///         http::StatusCode::InternalServerError => Ok("Something went wrong".into()),
@@ -98,8 +97,8 @@ where
         next: Next<'a, State>,
     ) -> BoxFuture<'a, crate::Result> {
         Box::pin(async move {
-            let result = next.run(request).await;
-            (self.0)(result).await
+            let response = next.run(request).await;
+            (self.0)(response).await
         })
     }
 }
@@ -127,10 +126,10 @@ pub struct Next<'a, State> {
     pub(crate) next_middleware: &'a [Arc<dyn Middleware<State>>],
 }
 
-impl<'a, State: 'static> Next<'a, State> {
+impl<'a, State: 'static + Send + Sync> Next<'a, State> {
     /// Asynchronously execute the remaining middleware chain.
     #[must_use]
-    pub async fn run(mut self, req: Request<State>) -> BoxFuture<'a, Response> {
+    pub fn run(mut self, req: Request<State>) -> BoxFuture<'a, Response> {
         Box::pin(async move {
             if let Some((current, next)) = self.next_middleware.split_first() {
                 self.next_middleware = next;
@@ -138,6 +137,6 @@ impl<'a, State: 'static> Next<'a, State> {
             } else {
                 self.endpoint.call(req).await.into()
             }
-        }
+        })
     }
 }
diff --git a/src/redirect.rs b/src/redirect.rs
index 22120c84e..cc7e656b4 100644
--- a/src/redirect.rs
+++ b/src/redirect.rs
@@ -88,6 +88,7 @@ impl<T: AsRef<str>> Redirect<T> {
 
 impl<State, T> Endpoint<State> for Redirect<T>
 where
+    State: Send + Sync + 'static,
     T: AsRef<str> + Send + Sync + 'static,
 {
     fn call<'a>(&'a self, _req: Request<State>) -> BoxFuture<'a, crate::Result<Response>> {
diff --git a/src/response.rs b/src/response.rs
index 1c03cda1e..c5ba3c80d 100644
--- a/src/response.rs
+++ b/src/response.rs
@@ -1,7 +1,6 @@
 use std::convert::TryInto;
 use std::fmt::Debug;
 use std::ops::Index;
-use std::sync::Arc;
 
 use crate::http::cookies::Cookie;
 use crate::http::headers::{self, HeaderName, HeaderValues, ToHeaderValues};
@@ -36,16 +35,6 @@ impl Response {
         }
     }
 
-    /// Create a new instance from an `http_types::Error`.
-    #[must_use]
-    pub fn from_error(err: Error) -> Self {
-        let res = http::Response::from_error(err);
-        Self {
-            res,
-            cookie_events: vec![],
-        }
-    }
-
     /// Returns the statuscode.
     #[must_use]
     pub fn status(&self) -> crate::StatusCode {
@@ -220,7 +209,7 @@ impl Response {
     }
 
     /// Takes the `Error` from the response if one exists, replacing it with `None`.
-    pub fn take_error(&mut self) -> Option<Arc<Error>> {
+    pub fn take_error(&mut self) -> Option<Error> {
         self.res.take_error()
     }
 
@@ -293,7 +282,8 @@ impl From<serde_json::Value> for Response {
 
 impl From<Error> for Response {
     fn from(err: Error) -> Self {
-        Self::from_error(err)
+        let res: http::Response = err.into();
+        res.into()
     }
 }
 
diff --git a/src/route.rs b/src/route.rs
index 4334bde80..8a0b662cf 100644
--- a/src/route.rs
+++ b/src/route.rs
@@ -29,7 +29,7 @@ pub struct Route<'a, State> {
     prefix: bool,
 }
 
-impl<'a, State: 'static> Route<'a, State> {
+impl<'a, State: 'static + Send + Sync> Route<'a, State> {
     pub(crate) fn new(router: &'a mut Router<State>, path: String) -> Route<'a, State> {
         Route {
             router,
@@ -274,7 +274,11 @@ impl<E> Clone for StripPrefixEndpoint<E> {
     }
 }
 
-impl<State, E: Endpoint<State>> Endpoint<State> for StripPrefixEndpoint<E> {
+impl<State, E> Endpoint<State> for StripPrefixEndpoint<E>
+where
+    State: 'static + Send + Sync,
+    E: Endpoint<State>,
+{
     fn call<'a>(&'a self, req: crate::Request<State>) -> BoxFuture<'a, crate::Result> {
         let crate::Request {
             state,
diff --git a/src/router.rs b/src/router.rs
index e210c82aa..92b8a3f46 100644
--- a/src/router.rs
+++ b/src/router.rs
@@ -22,7 +22,7 @@ pub struct Selection<'a, State> {
     pub(crate) params: Params,
 }
 
-impl<State: 'static> Router<State> {
+impl<State: 'static + Send + Sync> Router<State> {
     pub fn new() -> Self {
         Router {
             method_map: HashMap::default(),
@@ -82,10 +82,14 @@ impl<State: 'static> Router<State> {
     }
 }
 
-fn not_found_endpoint<State>(_cx: Request<State>) -> BoxFuture<'static, crate::Result> {
+fn not_found_endpoint<State: Send + Sync + 'static>(
+    _cx: Request<State>,
+) -> BoxFuture<'static, crate::Result> {
     Box::pin(async move { Ok(Response::new(StatusCode::NotFound)) })
 }
 
-fn method_not_allowed<State>(_cx: Request<State>) -> BoxFuture<'static, crate::Result> {
+fn method_not_allowed<State: Send + Sync + 'static>(
+    _cx: Request<State>,
+) -> BoxFuture<'static, crate::Result> {
     Box::pin(async move { Ok(Response::new(StatusCode::MethodNotAllowed)) })
 }
diff --git a/src/security/cors.rs b/src/security/cors.rs
index f6fd16463..734fcb5ac 100644
--- a/src/security/cors.rs
+++ b/src/security/cors.rs
@@ -141,7 +141,7 @@ impl<State: Send + Sync + 'static> Middleware<State> for CorsMiddleware {
 
             if origins.is_none() {
                 // This is not a CORS request if there is no Origin header
-                return next.run(req).await;
+                return Ok(next.run(req).await);
             }
 
             let origins = origins.unwrap();
@@ -156,7 +156,7 @@ impl<State: Send + Sync + 'static> Middleware<State> for CorsMiddleware {
                 return Ok(self.build_preflight_response(&origins).into());
             }
 
-            let mut response: http_types::Response = next.run(req).await?.into();
+            let mut response: http_types::Response = next.run(req).await.into();
 
             response.insert_header(
                 headers::ACCESS_CONTROL_ALLOW_ORIGIN,
diff --git a/src/server.rs b/src/server.rs
index 1a2443c17..d6769ab6f 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -454,8 +454,7 @@ impl<State: Sync + Send + 'static, InnerState: Sync + Send + 'static> Endpoint<S
                 next_middleware: &middleware,
             };
 
-            let res = next.run(req).await?;
-            Ok(res)
+            Ok(next.run(req).await)
         })
     }
 }
diff --git a/tests/nested.rs b/tests/nested.rs
index 4beae568d..bbd9df9ce 100644
--- a/tests/nested.rs
+++ b/tests/nested.rs
@@ -51,7 +51,7 @@ async fn nested_middleware() {
             next: Next<'a, State>,
         ) -> BoxFuture<'a, tide::Result<tide::Response>> {
             Box::pin(async move {
-                let mut res = next.run(req).await?;
+                let mut res = next.run(req).await;
                 res.insert_header("X-Tide-Test", "1");
                 Ok(res)
             })
diff --git a/tests/route_middleware.rs b/tests/route_middleware.rs
index 96f6ab568..e70471a75 100644
--- a/tests/route_middleware.rs
+++ b/tests/route_middleware.rs
@@ -23,7 +23,7 @@ impl<State: Send + Sync + 'static> Middleware<State> for TestMiddleware {
         next: tide::Next<'a, State>,
     ) -> BoxFuture<'a, tide::Result<tide::Response>> {
         Box::pin(async move {
-            let mut res = next.run(req).await?;
+            let mut res = next.run(req).await;
             res.insert_header(self.0.clone(), self.1);
             Ok(res)
         })