diff --git a/lib/cartodb/controllers/named_maps.js b/lib/cartodb/controllers/named_maps.js
index f668d638..f3aff5bd 100644
--- a/lib/cartodb/controllers/named_maps.js
+++ b/lib/cartodb/controllers/named_maps.js
@@ -16,6 +16,17 @@ function numMapper(n) {
     return +n;
 }
 
+function getRequestParams(locals) {
+    const params = Object.assign({}, locals);
+
+    delete params.template;
+    delete params.affectedTablesAndLastUpdate;
+    delete params.namedMapProvider;
+    delete params.allowedQueryParams;
+
+    return params;
+}
+
 function NamedMapsController(prepareContext, namedMapProviderCache, tileBackend, previewBackend,
                              surrogateKeysCache, tablesExtentApi, metadataBackend) {
     this.namedMapProviderCache = namedMapProviderCache;
@@ -74,8 +85,9 @@ NamedMapsController.prototype.getNamedMapProvider = function (label) {
         const { user } = res.locals;
         const { config, auth_token } = req.query;
         const { template_id } = req.params;
+        const params = getRequestParams(res.locals);
 
-        this.namedMapProviderCache.get(user, template_id, config, auth_token, res.locals, (err, namedMapProvider) => {
+        this.namedMapProviderCache.get(user, template_id, config, auth_token, params, (err, namedMapProvider) => {
             if (err) {
                 err.label = label;
                 return next(err);
@@ -146,11 +158,13 @@ NamedMapsController.prototype.prepareLayerFilterFromPreviewLayers = function (la
             return next();
         }
 
+        const params = getRequestParams(res.locals);
+
         // overwrites 'all' default filter
-        res.locals.layer = layerVisibilityFilter.join(',');
+        params.layer = layerVisibilityFilter.join(',');
 
         // recreates the provider
-        this.namedMapProviderCache.get(user, template_id, config, auth_token, res.locals, (err, provider) => {
+        this.namedMapProviderCache.get(user, template_id, config, auth_token, params, (err, provider) => {
             if (err) {
                 err.label = label;
                 return next(err);