Servicestack CorsFeature Global Options Handler Not Firing on Certain Routes;

Question

I\'ve got a service setup using the CorsFeature, and am using the approach that mythz suggested in other answers, collected in a function used in the appHost file:

Answer 1

Following steps worked for me within ServiceStackV3.

1. Added a new class CustomActionHandler

using ServiceStack.ServiceHost;
using ServiceStack.WebHost.Endpoints.Extensions;
using ServiceStack.WebHost.Endpoints.Support;

public class CustomActionHandler : IServiceStackHttpHandler, IHttpHandler 
{
    public Action Action { get; set; }

    public CustomActionHandler(Action action)
    {
        if (action == null)
            throw new Exception("Action was not supplied to ActionHandler");

        Action = action;
    }

    public void ProcessRequest(IHttpRequest httpReq, IHttpResponse httpRes, string operationName)
    {            
        Action(httpReq, httpRes);
    }

    public void ProcessRequest(HttpContext context)
    {
        ProcessRequest(context.Request.ToRequest(GetType().Name), 
            context.Response.ToResponse(),
            GetType().Name);
    }

    public bool IsReusable
    {
        get { return false; }
    }
}

2. Add the CustomHandler within AppHostBase.Config.RawHttpHandlers collection (this statements can be written inside the Configure(Container container) method).

// Handles Request and closes Response after emitting global HTTP Headers 
var emitGlobalHeadersHandler = new CustomActionHandler((httpReq, httpRes) => httpRes.EndRequest());
Config.RawHttpHandlers.Add(httpReq => httpReq.HttpMethod == HttpMethods.Options ? emitGlobalHeadersHandler : null);