Fix deprecated URL parsing in local proxy

.changeset/quiet-local-proxy-urls.md

@@ -0,0 +1,5 @@
+---
+'@vercel/microfrontends': patch
+---
+
+Avoid Node.js `url.parse()` deprecation warnings when routing requests through the local proxy.

packages/microfrontends/src/bin/local-proxy.test.ts

@@ -740,6 +740,7 @@ describe('class LocalProxy', () => {
         expect.anything(),
         res,
         expect.objectContaining({
+          toProxy: true,
           headers: expect.objectContaining({
             'x-forwarded-proto': 'https',
             'x-forwarded-host': 'vercel.localhost',
@@ -1097,6 +1098,7 @@ describe('class LocalProxy', () => {
         socket,
         head,
         expect.objectContaining({
+          toProxy: true,
           headers: expect.objectContaining({
             'x-forwarded-proto': 'https',
             'x-forwarded-host': 'vercel.localhost',

packages/microfrontends/src/bin/local-proxy.ts

@@ -739,6 +739,9 @@ export class LocalProxy {
         this.proxy.ws(req, socket, head, {
           target: target.url,
           headers,
+          // Forward the origin-form request target directly instead of letting
+          // http-proxy parse it with Node.js's deprecated url.parse().
+          toProxy: true,
         });
       } catch (err) {
         logger.error('Error proxying ws: ', err);
@@ -927,6 +930,9 @@ export class LocalProxy {
       this.proxy.web(strippedReq, res, {
         target: target.url,
         headers,
+        // Forward the origin-form request target directly instead of letting
+        // http-proxy parse it with Node.js's deprecated url.parse().
+        toProxy: true,
       });
     }
   }