GregorT

namespace yourApplicationNameSpace
{
    public class JavascriptOutputAttribute : ActionFilterAttribute
    {
        private static readonly Regex OpenScriptTag = new Regex(@"^\s*<script[^>]*>", RegexOptions.Compiled);
        private static readonly Regex CloseScriptTag = new Regex(@"</script>\s*$", RegexOptions.Compiled);

        public override async Task OnResultExecutionAsync(ResultExecutingContext context, ResultExecutionDelegate next)
        {
            var resp = context.HttpContext.Response;