带有StreamContent的Web API 2 IHttpActionResult会自动启用压缩吗？

Question

在下面的代码中，它将通过线路的天蓝色blob流镜像到客户端。 webapi会自动在流上启用压缩，还是需要手动将其添加到BlobResult操作结果中？

public class BlobResult : IHttpActionResult
{
    private readonly CloudBlockBlob blob;

    public BlobResult(CloudBlockBlob blob)
    {
    }

    public async Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
    {
        await blob.FetchAttributesAsync();

        var response = new HttpResponseMessage(HttpStatusCode.OK)
        {
            Content = new StreamContent(await blob.OpenReadAsync())
        };

        response.Content.Headers.LastModified = blob.Properties.LastModified;
        response.Content.Headers.ContentType = new MediaTypeHeaderValue(blob.Properties.ContentType);

        return response;
    }
}