From e01bc09573ccfee7f862c9ba2fdd7e829353b14e Mon Sep 17 00:00:00 2001
From: Satya Rohith <me@satyarohith.com>
Date: Thu, 4 Apr 2024 20:38:51 +0530
Subject: fix(ext/node): count MessagePort message listeners in
 hasMessageEventListener (#23209)

---
 runtime/js/99_main.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'runtime/js/99_main.js')

diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index f65bd2b01..cbba28434 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -282,7 +282,8 @@ let isClosing = false;
 let globalDispatchEvent;
 
 function hasMessageEventListener() {
-  return event.listenerCount(globalThis, "message") > 0;
+  return event.listenerCount(globalThis, "message") > 0 ||
+    messagePort.messageEventListenerCount > 0;
 }
 
 async function pollForMessages() {
-- 
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