使用asp.net MVC在服务器上从SVG创建映像？

Question

I am trying to create an image from an svg that I pass into my controller from the client side.

the svg is being passed in thourgh a posted form's hidden input.

Controller:

[HttpPost, ValidateInput(false)]
public ActionResult GetChartImage(string svgString)
{
    byte[] imageBytes;

    var bytes = Encoding.ASCII.GetBytes(svgString);

    using (var stream = new MemoryStream(bytes))
    {
        var svgDocument = SvgDocument.Open(stream);
        var bitmap = svgDocument.Draw();
        bitmap.Save(stream, ImageFormat.Png);
        imageBytes = stream.ToArray();
    }

    return File(new MemoryStream(imageBytes), "image/png");
}

the problem is that when the process finishes the new webpage that was opened as a result of posting the form, doesn't show the produced image:

Answer 1

This is a version that is using GET

MyController:

[HttpGet]
public FileContentResult GetEmployeeImage()
{
    byte[] image = byteArrayFromImage;

    return new FileContentResult(image , "image/jpeg");
}

View:

<img src="@Url.Action("GetEmployeeImage", "MyController")" alt="avatar" />