1 srcsrv request.txt

GET http://s7:27413/octokit/octokit.net/d0fffd4f7ccc5b72b46b4774df4f2c53a04930ef/Octokit/Http/ProductHeaderValue.cs HTTP/1.1
Accept-Encoding: gzip
User-Agent: Microsoft-Symbol-Server/6.3.9600.17095
Host: s7:27413
Connection: Keep-Alive
Pragma: no-cache

2 aspnet vnext response.txt

HTTP/1.1 401 Unauthorized
Content-Length: 0
Server: Microsoft-HTTPAPI/2.0
WWW-Authenticate: Basic realm="WallyWorld"
Date: Sun, 09 Nov 2014 00:21:09 GMT

3 prompt in Visual Studio.txt

Windows Security
devenv.exe
The server s7 is asking for your user name and password. The server reports that it is from WallyWorld.
Warning: Your user name and password will be sent using basic authentication on a connection that isn't secure.
User name
Password
Remember my credentials

4 srcsrv request with auth.txt

GET http://s7:27413/octokit/octokit.net/d0fffd4f7ccc5b72b46b4774df4f2c53a04930ef/Octokit/Http/ProductHeaderValue.cs HTTP/1.1
Accept-Encoding: gzip
User-Agent: Microsoft-Symbol-Server/6.3.9600.17095
Host: s7:27413
Connection: Keep-Alive
Pragma: no-cache
Authorization: Basic dGhldXNlcjp0aGVwYXNzd29yZA==

5 aspnet vnext Startup.cs

using Microsoft.AspNet.Builder;
using System.Diagnostics;

namespace WebApplication1
{
    public class Startup
    {
        public void Configure(IApplicationBuilder app)
        {
            app.Run(async context =>
            {
                await System.Threading.Tasks.Task.FromResult(0); // suppress CS1998 warnings
                var path = context.Request.Path.Value;
                Trace.WriteLine("path: " + path);
                if (path.StartsWith("/octokit")){
                    context.Response.StatusCode = 401; // unauthorized
                    context.Response.Headers.Add("WWW-Authenticate", new[] { "Basic realm=\"WallyWorld\"" }); // yes
                    //context.Response.Headers.Add("WWW-Authenticate", new[] { "Digest realm=\"WallyWorld\"" }); // no
                    return;
                }
                context.Response.StatusCode = 404; // not found
            });
        }
    }
}