From 9337aa3cdf3f0fda8723f416387ce111fb85eff6 Mon Sep 17 00:00:00 2001
From: Max Schmitt <max@schmitt.mx>
Date: Mon, 29 Nov 2021 19:36:35 +0100
Subject: [PATCH] fix(test-runner): webServer port detection on Node.js 17
 (#10538)

---
 packages/playwright-test/src/webServer.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/playwright-test/src/webServer.ts b/packages/playwright-test/src/webServer.ts
index bdd1d723a1..bb98d441b1 100644
--- a/packages/playwright-test/src/webServer.ts
+++ b/packages/playwright-test/src/webServer.ts
@@ -105,9 +105,9 @@ export class WebServer {
 }
 
 async function isPortUsed(port: number): Promise<boolean> {
-  return new Promise<boolean>(resolve => {
+  const innerIsPortUsed = (host: string) => new Promise<boolean>(resolve => {
     const conn = net
-        .connect(port)
+        .connect(port, host)
         .on('error', () => {
           resolve(false);
         })
@@ -116,6 +116,7 @@ async function isPortUsed(port: number): Promise<boolean> {
           resolve(true);
         });
   });
+  return await innerIsPortUsed('127.0.0.1') || await innerIsPortUsed('::1');
 }
 
 async function waitForSocket(port: number, delay: number, cancellationToken: { canceled: boolean }) {