Fix keep-alive issue

See nickel-org/nickel.rs#392

Cargo.toml

@@ -6,3 +6,4 @@ authors = ["kpcyrd"]
 [dependencies]
 nickel = "*"
 rustc-serialize = "0.3.22"
+hyper = "0.9.14"

src/main.rs

@@ -1,3 +1,4 @@
+extern crate hyper;
 extern crate rustc_serialize;
 #[macro_use] extern crate nickel;
 
@@ -6,6 +7,7 @@ use std::io::prelude::*;
 use std::collections::{ HashMap, BTreeMap };
 use std::process::{ Command, Stdio };
 
+use hyper::header::Connection;
 use nickel::status::StatusCode;
 use nickel::{ Nickel, HttpRouter, JsonBody, Mountable, StaticFilesHandler, MediaType, MiddlewareResult, Request, Response };
 use rustc_serialize::json::{ Json, ToJson };
@@ -75,10 +77,19 @@ fn logger_fn<'mw>(req: &mut Request, res: Response<'mw>) -> MiddlewareResult<'mw
     res.next_middleware()
 }
 
+fn no_keepalive<'mw>(_: &mut Request, mut res: Response<'mw>) -> MiddlewareResult<'mw> {
+    // this is a workaround for broken keep-alive (people on irc say it's in hyper)
+    println!("adding Connection: close");
+    res.set(Connection::close());
+    res.next_middleware()
+}
+
+
 fn main() {
     let mut server = Nickel::new();
 
     server.utilize(logger_fn);
+    server.utilize(no_keepalive);
 
     server.get("/", middleware! { |_, res|
         let mut data = HashMap::new();