public class HomeController : Controller
{
    private readonly ILogger<HomeController> _logger;

    public HomeController(ILogger<HomeController> logger)
    {
        _logger = logger;
    }

    public IActionResult Index()
    {
        // use it in controller
        var valueFromRegexRewrite = Request.HttpContext.Items["RegexRewriteWithCapture"];
        return View(valueFromRegexRewrite);
    }

}