test: deflake inspector network fetch

A Windows socket bound to 127.0.0.1 can accept connections intended for
another process's wildcard listener on the same port. A competing
inspector can then answer the HTTP request with 400 or send plaintext
to the HTTPS client.

Bind both fixture servers to the address used by their requests to
prevent the competing bind. Bypass environment proxies so local HTTP
and HTTPS requests reach the fixture servers directly, and remove the
Windows flaky expectation.

Fixes: #59090
Signed-off-by: Filip Skokan <panva.ip@gmail.com>
Assisted-by: Claude, Codex
PR-URL: #66320
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: panva

test/parallel/parallel.status

@@ -20,8 +20,6 @@ test-fs-read-stream-concurrent-reads: PASS, FLAKY
 test-snapshot-incompatible: SKIP
 
 [$system==win32]
-# https://github.com/nodejs/node/issues/59090
-test-inspector-network-fetch: PASS, FLAKY
 # https://github.com/nodejs/node/issues/59636
 test-fs-cp-sync-symlink-points-to-dest-error: SKIP
 test-fs-cp-async-symlink-points-to-dest: SKIP

test/parallel/test-inspector-network-fetch.js

@@ -12,9 +12,10 @@ const http = require('node:http');
 const https = require('node:https');
 const inspector = require('node:inspector/promises');
 
-// Disable certificate validation for the global fetch.
+// Keep local requests independent of proxy settings and allow the test certificate.
 const undici = require('internal/deps/undici/undici');
 undici.setGlobalDispatcher(new undici.EnvHttpProxyAgent({
+  noProxy: '*',
   connect: {
     rejectUnauthorized: false,
   },
@@ -205,8 +206,10 @@ const testNetworkInspection = async () => {
   session.removeAllListeners();
 };
 
-httpServer.listen(0, () => {
-  httpsServer.listen(0, async () => {
+// Listen on the address the requests go to, so that a socket another process
+// binds to 127.0.0.1 on the same port cannot take the connections over.
+httpServer.listen(0, '127.0.0.1', () => {
+  httpsServer.listen(0, '127.0.0.1', async () => {
     try {
       await session.post('Network.enable');
       await testNetworkInspection();