fix: pass res.locals to HttpIncoming constructor

lib/podlet.js

@@ -903,10 +903,7 @@ export default class PodiumPodlet {
      */
     middleware() {
         return async (req, res, next) => {
-            // initialise res.locals.params so that it can be added to anywhere including in route hooks
-            // or middleware added after this middleware
-            res.locals.params = res.locals.params || {};
-            const incoming = new HttpIncoming(req, res, res.locals.params);
+            const incoming = new HttpIncoming(req, res, res.locals);
             // @ts-ignore
             incoming.url = new URL(
                 req.originalUrl,

package.json

@@ -54,6 +54,7 @@
     "eslint-plugin-import": "2.29.1",
     "eslint-plugin-prettier": "5.1.3",
     "express": "4.19.2",
+    "json-stringify-safe": "5.0.1",
     "prettier": "3.2.4",
     "semantic-release": "23.0.6",
     "tap": "18.7.2",

tests/podlet.js

@@ -1,11 +1,13 @@
 // @ts-nocheck
 
+/* eslint-disable import/no-extraneous-dependencies */
 /* eslint-disable no-unused-expressions */
 /* eslint-disable max-classes-per-file */
 /* eslint-disable no-param-reassign */
 
 import { destinationObjectStream } from '@podium/test-utils';
 import { template, HttpIncoming, AssetJs, AssetCss } from '@podium/utils';
+import stringify from 'json-stringify-safe';
 import { join, dirname } from 'path';
 import Metrics from '@metrics/client';
 import tap from 'tap';
@@ -120,7 +122,7 @@ class FakeExpressServer {
         this.app.use(
             onRequest ||
                 ((req, res) => {
-                    res.status(200).json(res.locals);
+                    res.status(200).send(stringify(res.locals));
                 }),
         );
         this.server = undefined;
@@ -1310,7 +1312,8 @@ tap.test('.view() - append a custom wireframe document - should render developme
     podlet.view((incoming, data) => `<div data-foo="${incoming.params.foo}">${data}</div>`);
 
     const server = new FakeExpressServer(podlet, (req, res) => {
-        res.locals.params.foo = 'bar';
+        res.locals.params = res.locals.params || {};
+        res.locals.foo = 'bar';
         res.podiumSend('<h1>OK!</h1>');
     });