HTML templates redirects through rendering parameters on a 'winner' rendering on a Sitecore MV test

in js:

getTemplateUrl: function (url) {

                     var templateRedirects = HA.templateRedirects || {};

                     var redirect = templateRedirects[url.toLowerCase()];

                     if (redirect) {

                         url = redirect;

                     }

                           return url ? [HA.cdn.html, templateRoot, url.replace(/^\/|\/$/g, '')].join('') : '';

                    },

on the cshtml view:

@{

    Dictionary<string, string> renderingParameters = new Dictionary<string, string>();

    if (RenderingContext.CurrentOrNull != null)

    {

        var renderings = RenderingContext.Current.PageContext.PageDefinition.Renderings;

        foreach (var rendering in renderings)

        {

            var parameters = rendering.RenderingItem.Parameters;

            if (!string.IsNullOrEmpty(parameters))

            {

                var collection = Sitecore.StringUtil.ParseNameValueCollection(parameters, '&', '=');

                foreach (string key in collection.AllKeys)

                {

                    string value = collection[key];

                    if (!string.IsNullOrEmpty(value) && !renderingParameters.ContainsKey(key))

                    {

                        renderingParameters.Add(key.ToLower(), value.ToLower());

                    }

                }

            }

        }

    }

}

<script type="text/javascript">

    HA = {};

    HA.templateRedirects = @Html.Raw(Json.Encode(renderingParameters));

    console.log(HA.templateRedirects);

</script>

in Sitecore: