Found a good answer for Web API that led me in the right direction.
https://stackoverflow.com/a/41680404/3850405
I started out by adding a new ASP.NET Web Application -> MVC -> No Authentication.
I then removed everything accept Global.asax, packages.config and Web.config.
I then edited Global.asax to use a DelegatingHandler like this:
public class MvcApplication : System.Web.HttpApplication
{
protected void Application_Start()
{
GlobalConfiguration.Configure(CustomHttpProxy.Register);
}
}
public static class CustomHttpProxy
{
public static void Register(HttpConfiguration config)
{
config.Routes.MapHttpRoute(
name: "Proxy",
routeTemplate: "{*path}",
handler: HttpClientFactory.CreatePipeline(
innerHandler: new HttpClientHandler(),
handlers: new DelegatingHandler[]
{
new ProxyHandler()
}
),
defaults: new { path = RouteParameter.Optional },
constraints: null
);
}
}
public class ProxyHandler : DelegatingHandler
{
private static HttpClient client = new HttpClient();
protected override async Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
var forwardUri = new UriBuilder(request.RequestUri.AbsoluteUri);
forwardUri.Host = "localhost";
forwardUri.Port = 62904;
request.RequestUri = forwardUri.Uri;
if (request.Method == HttpMethod.Get)
{
request.Content = null;
}
request.Headers.Add("X-Forwarded-Host", request.Headers.Host);
request.Headers.Host = "localhost:62904";
var response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
return response;
}
}
After this I had to add the static content and then everything worked.
