From 09461f8a76806cc0eec2e5dbd105bd46f27437e5 Mon Sep 17 00:00:00 2001
From: Dmitry Gozman <dgozman@gmail.com>
Date: Tue, 26 Jul 2022 18:42:02 -0700
Subject: [PATCH] fix(driver): make sure IpcTransport messages arrive in
 different tasks (#15978)

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

diff --git a/packages/playwright-core/src/protocol/transport.ts b/packages/playwright-core/src/protocol/transport.ts
index 8026f00c21..92991af7ae 100644
--- a/packages/playwright-core/src/protocol/transport.ts
+++ b/packages/playwright-core/src/protocol/transport.ts
@@ -106,17 +106,18 @@ export class PipeTransport {
 
 export class IpcTransport {
   private _process: NodeJS.Process | ChildProcess;
+  private _waitForNextTask = makeWaitForNextTask();
   onmessage?: (message: string) => void;
   onclose?: () => void;
 
   constructor(process: NodeJS.Process | ChildProcess) {
     this._process = process;
-    this._process.on('message', message => {
+    this._process.on('message', message => this._waitForNextTask(() => {
       if (message === '<eof>')
         this.onclose?.();
       else
         this.onmessage?.(message);
-    });
+    }));
   }
 
   send(message: string) {