Capturing HTML output with a controller action filter

Question

I\'ve got the following filter in place on an action to capture the HTML output, convert it to a string, do some operations to modify the string, and return a ContentResult

Answer 1

Can you verify that stream is not NULL in the OnActionExectuted-method? I'm not sure the state of the stream-variable is being stored through the process..

Why don't you try to get the stream out of the filterContext:

public override void OnActionExecuted(ActionExecutedContext filterContext)
{
    var stream = filterContext.HttpContext.Response.Filter;
    string response = new StreamReader(stream).ReadToEnd();
    ContentResult contres = new ContentResult();
    contres.Content = response;
    filterContext.Result = contres;
}