Ocelot/src/Ocelot/Headers/RemoveOutputHeaders.cs

using System.Net.Http.Headers;
using Ocelot.Responses;

namespace Ocelot.Headers
{
    using System;

    public class RemoveOutputHeaders : IRemoveOutputHeaders
    {
        /// <summary>
        /// Some webservers return headers that cannot be forwarded to the client
        /// in a given context such as transfer encoding chunked when ASP.NET is not
        /// returning the response in this manner
        /// </summary>
        private readonly string[] _unsupportedRequestHeaders = 
        {
            "Transfer-Encoding"
        };
        public Response Remove(HttpResponseHeaders headers)
        {
            foreach (var unsupported in _unsupportedRequestHeaders)
            {
                headers.Remove(unsupported);
            }

            return new OkResponse();
        }
    }
}